<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><div><br/></div><div><br/></div><div style="border:1px solid rgb(174, 174, 174);padding:15px;padding-bottom:15px;padding-top:15px;padding-left:15px;padding-right:15px"><p><span style="background-color:rgb(255, 255, 255);font-size:18px"><strong>U.S. buyer attention:<br/>The areas where the US warehouse does not deliver goods are: Hawaii, Alaska, Puerto Rico, Guam and other US overseas territories. And the military address. But you can choose ship from China.<br/><br/>Spanish buyers attention:<br/>If your address includes following postal code please do not choose the Spanish warehouse.<br/>The zip code starts with 35/38.<br/>Overseas warehouse cannot be delivered. But you can choose ship from China<br/></strong></span></p><p></p><table class="ke-zeroborder" width="100%" border="0" cellPadding="0" cellSpacing="0" style="border-collapse:collapse;width:100%"><tbody><tr><td><div><span><br/></span></div><div><span><br/></span></div><div style="border:1px solid rgb(174, 174, 174);padding:15px;padding-bottom:15px;padding-top:15px;padding-left:15px;padding-right:15px"><span> ZK-MT21 2x50W+100W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12V 24V Audio Stereo </span><span><span style="background-color:red">Bluetooth</span></span><span>-compatible 5.0 Bass Amp for Home Theater Speaker<br/>Feature:<br/>The </span><span><span style="background-color:red">Bluetooth</span></span><span>-compatible audio power amplifier module has 2.1 channels and the maximum output power is 2X50W+100W.<br/>It has two audio input modes, AUX and </span><span><span style="background-color:red">Bluetooth</span></span><span>-compatible, and a two-in-one power amplifier board. </span><span><span style="background-color:red">Bluetooth</span></span><span>-compatible5.0, higher transmission efficiency, longer transmission distance<br/>It has short-circuit protection, over-current, over-heating, and anti-reverse protection to prevent total failure. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage<br/>It adopts copper DC connectors and barrier terminals. It can withstand high current without heating or damaging wires.<br/>Classic appearance multi-function main knob. The main knob adopts a rotary encoder that is only used in high-end power amplifiers, which realizes 360-degree stepless tuning and a smooth one-key start and stop. The operation is simple and convenient by long pressing the switch.<br/>With bass, treble, subwoofer frequency and volume control, you can easily adjust the volume and enjoy the music tone you want. It is widely used in shopping malls, home theaters, speakers, etc.<br/><br/>Specification:<br/>Product name: 2.1 channel </span><span><span style="background-color:red">Bluetooth</span></span><span>-compatible audio power amplifier module<br/>Product model: ZK-MT21<br/></span><span><span style="background-color:red">Bluetooth-compatible</span></span><span> version: 5.0 (unobstructed, 15 meters)<br/>Input sensitivity: 500mV<br/>Input method: AUX+ </span><span><span style="background-color:red">Bluetooth</span></span><span>-compatible<br/>Number of channels: 2.1 channels<br/>Power amplifier chip: Domestic power amplifier chip<br/>Adapter power supply: above DC12-24V/5A (24V battery pack is not allowed)<br/>Adapted speakers: 20-100W, 4-8Q<br/>Output power: left and right channels &lt;50W; subwoofer &lt;100W<br/>Protection mechanism: Anti-reverse connection, overheating, overcurrent, short circuit protection<br/>Product size: 93mm*90mm*22mm<br/>Product weight: about 130g<br/><br/>Notice:<br/>The product can be connected with an external antenna, but does not include an antenna and an antenna base, please purchase it separately.<br/>Tip: Only when the audio input is enough and the power supply voltage/current is enough, there will be enough output power!!!<br/>The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!!! Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifier!!!<br/><br/>Note:<br/>Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br/><br/>Please allow 1-2cm measuring deviation due to manual measurement. <br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div style="border:1px solid rgb(174, 174, 174);padding:15px;padding-bottom:15px;padding-top:15px;padding-left:15px;padding-right:15px"><span> 1 X Power Amplifier Board<br/><br/>1 X Accessory Pack <br/></span></div><p></p><p><span><br/></span></p><div style="text-align:center" align="center"></div><p></p><p><span><br/></span></p><p><span><br/></span></p><p><span><br/></span></p><p><span><br/></span></p></td></tr></tbody></table></div></div></div><br/>