<p style="font-family:&quot;TT Norms Pro&quot;, &quot;Open Sans&quot;, Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);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="start"><strong><span style="color:rgb(51, 51, 51);font-size:22px;font-family:arial, helvetica, sans-serif">There are 2 models optional, different model with different interface and appearance, please choose suitable model before purchase:</span></strong></p><p style="font-family:&quot;TT Norms Pro&quot;, &quot;Open Sans&quot;, Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);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="start"><strong><span style="color:rgb(51, 51, 51);font-size:22px;font-family:arial, helvetica, sans-serif">（1）Bluetooth 5.4 adapter，15</span></strong><strong><span style="font-size:22px;font-family:arial, helvetica, sans-serif">0M transmission distance</span></strong></p><p style="font-family:&quot;TT Norms Pro&quot;, &quot;Open Sans&quot;, Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);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="start"><strong><span style="color:rgb(51, 51, 51);font-size:22px;font-family:arial, helvetica, sans-serif">（2）Bluetooth 6.0 adapter，20</span></strong><strong><span style="font-size:22px;font-family:arial, helvetica, sans-serif">0M transmission distance</span></strong></p><p><br/></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">6.0 Bluetooth adapter is newly upgraded, with strong compatibility, high speed and stability, and longer receiving distance.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Applicable operating system: Support Windows7/win8.1/win10/11 mainstream operating system! (Win8.1/10/11 is used without driving)</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Realize wireless Bluetooth connection between computer and other Bluetooth protocol devices (Bluetooth headset/speaker/mouse/keyboard/gamepad/mobile phone/printer, etc.) for audio, data and image transmission.</span></p><p><br/></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">1. Adopt 6.0 Bluetooth chip, which conforms to the technical specification of Bluetooth 6.0, LMP：14.5X, BLE/EDR dual-mode low-power transmission.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">2. Longer transmission distance: 200m long transmission distance (no barrier), upgraded antenna and strong signal.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">3. More stable transmission rate: 3Mbps transmission rate, providing high-speed file and audio data transmission.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">4. Drive-free use: it supports plug-and-play without drive, without CD installation, which is convenient and simple.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">5. Ultra-low delay speed link, intelligent sleep wake-up to save energy, 24-bit CRC check to resist interference, adaptive frequency hopping to reduce crosstalk.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">6. backwards compatibility Bluetooth 2.0, Bluetooth 2.1, Bluetooth 3.0, Bluetooth 4.0, Bluetooth 5.0, Bluetooth 5.1, Bluetooth 5.3, Bluetooth 5.4 and other specifications.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">7.USB2.0 interface (universal USB3.0).</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">8. Five kinds of devices can be connected at the same time, with strong compatibility, and one adapter can meet various needs.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">9. Technology upgrade, one link, and subsequent use of automatic reconnection, without secondary pairing.</span></p>