<p>Details:</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">USB Bluetooth 2.0/5.0/5.4 for laptops and PCs | USB Bluetooth CSR V2.0/5.0/5.4 | Bluetooth CSR 2.0/5.0/5.4 adapter | Additional Bluetooth for computers/laptops</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">This USB Bluetooth V2.0/5.0/5.4 enables wireless data connection between computers and Bluetooth enabled devices, mobile phones, personal digital devices, and other devices that can wirelessly connect to computers. The devices can be interconnected within a range of 20m. The connection speed is faster than previous USB Bluetooth devices.</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">USB Bluetooth 5.4 specifications:</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Support simultaneous connection of multiple devices (up to 7 devices can be connected)</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-5.4 Bluetooth dual-mode dual channel, compatible with Bluetooth 2.0, 3.0, 4.0, 5.0, 5.1, and 5.3 specifications.</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Intelligent low-power chip, RF transceiver, providing lower latency, flexible and powerful Bluetooth applications</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Supports Cass2 power level within a distance of 20 meters (in open environments)</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Supports Bluetooth 5.4 dual-mode specification (LMP 13. X true Bluetooth 5.4 standard)</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Supports USB 2.0/3.0 interfaces</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Working temperature -20 to 70 ℃</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Supporting operating systems: Windows 8.1、 10. 11 (No driver required, plug and play, Win7 system computers can install drivers for use)</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Supporting protocols: HFP/HSP (Hands Free Phone/Earphones) A2DP/AVRCP (Stereo Music) HID/HOGP (Keyboard and Mouse)/ACC, Android Smartphones, etc</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-This product is equipped with the Taiwan Ruiyu True Bluetooth 5.4 chip. Firmware version - LMP: 13.XX</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Supports dual-mode EDR/LE stereo audio transmission</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-The transmission efficiency is 2 times faster than Bluetooth 5.0, the data transmission speed is 8 times faster, and the power consumption is reduced by 50%.</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">USB Bluetooth 5.3, 5.0, and 2.0 specifications:</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Only one device can be connected at a time, so the microphone cannot be used with the headphones</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-USB Bluetooth Wireless Data Transfer CSR 5.0 Dongle</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Manufacturer: Crypto Dog</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">model: SCR 5.0/SCR 2.0</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Warranty: 03 months, 1 exchange 1</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Function: Wireless data transmission connection between computer and Bluetooth device</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-100% brand new product, full box</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">-Windows 10 and above versions do not require driver installation</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">USB 5.4 can be used with many devices (so you can listen and speak using Bluetooth earphones with microphones)</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">USB 5.3、 5.0 and 2.0 use one device (therefore can only be used for listening with headphones, not microphone)</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">USB Bluetooth version is backward compatible with devices</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">For example, USB Bluetooth 5.4 can connect Bluetooth 5.4, 5.0, and 2.0 devices, while USB Bluetooth 2.0 can only connect Bluetooth 2.0 devices.</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p>