Features:1. Use high quality material, durable2. The outer winding is made of high-density environmentally friendly tinned copper wire , with high density, which plays a good shielding role for connection signals.3. The Bluetooth name of each product can be changed, and multiple can be identified4. The volume of the prompt tone can be adjusted to meet the different needs of customers5. Wide range of applicationsParameter:Model: -HT22Name: 2.1 channel 160Wx2+220W potentiometer external Bluetooth audio power amplifierPower amplifier chip: TDA7498EBluetooth version: 5.1Bluetooth transmission distance: 10 (if you need a distance, connect an external antenna yourself)Audio input: Bluetooth+AUX+U disk+USB sound cardAudio output: left channel 160W + right channel 160W + subwoofer 220WAdaptive power supply: DC1 5-36V, 9A (not connected to AC)Adapted speakers: left and right channels 30-200W, 4-8; subwoofer 30-200W, 4-8 Outer leads: 5 7P shielded wires 35cmPotentiometer adjustment: volume, stereo bass, stereo treble, subwoofer volume, subwoofer frequency volume with buttonsClick: play/pauseDouble click: songThree clicks: select or cancel modeProtection mechanism: over temperature, over current, short circuit, anti-static protectionFeatures: Support Wuzhi Audio APP. the Bluetooth name, password , adjust the volume of the prompt sound, turn on/off the prompt sound, lullaby, firmware upgrade, etc.-to-box function and the true wireless function enable two sets of speakers to be combined into left and right channelsFor , the sense of spatial positioning is stronger.Color: Pictorial colorMaterial: PC+ metalPackage Contents:1 x Amplifier board5 x 7p shielded wireOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.