DollaTek Bluetooth Audio Amplifier Board 2.1Cha... Subwoofer and stereo output volume are adjusted separately. The total volume is a mechanical potentiometer, the volume position is clear at a glance, multi-function buttons with rich functions Subwoofer and stereo output volume are adjusted separately. 10 kinds of natural sounds to create a unique natural sound scene, to create a natural atmosphere, quickly calm the mood, to achieve deep sleep. Color:BlackMaterial:PlasticSize:75 x 70 x 20mmPackage Contents:1 x -LT23 Amplifier Board1 x Screwdriver1 x Terminal DIY Speaker Amplifier Board LT23 DollaTek Bluetooth Audio Amplifier Board 2.1Channel Mauritius Bluetooth Amplifier Board Subwoofer and stereo output volume are adjusted separately. The total volume is a mechanical potentiometer, the volume position is clear at a glance, multi... Protection mechanism,over-temperature, over-current, short circuit, anti-static protection. Modify the bluetooth name, password setting, volume adjustment of prompt tone, on/off prompt tone, sleep aid, firmware upgrade, etc. 305 tpa3116 digital bluetooth power amplifier board audio class d bass subwoofer amplifier 2.1 Pair box function, true wireless function so that two sets of speakers can be combined into a left and right channel pair box, a stronger sense of spatial localization.
