FamilyMall Bluetooth Subwoofer Amplifier Board Hifi Stereo 2.1 with Treble and Bass Control Regulation 2X50W+100W DC 12V-24V Audio Power Amplifier Module AUX Input for Store Home Theater Speakers

【Specifications】Input Voltage: DC 12V-24V. Max Power Output: 50W*2（Left and Right channel）+100W（Subwoofer）. Channel: 2.1 CH Stereo Output. Output Impedance：4-8Ω. Bluetooth Version：BT 5.0 【HIFI & Stereo】 High quality dual channel power amplifier board for HIFI music. It supports both AUX input and Bluetooth connection (BT 5.0). The transmission efficiency and distance is higher and longer. 【High Performance】 It is intergrated high performance processor chip, which is a Class D amplifier IC. The modulation frequency can be up to 1.2MHZ and the high power output distortion is less than 0.1%. Its built-in LC filter capacitor to make the vocals clearer. 【Both AUX and Bluetooth Input】 It supports Bluetooth version 5.0. The transmission distance is longer,upto 49ft in open air environment. If your device does not have bluetooth module, you also can input audio signal via its 3.5mm headphone plug. 【Protect Mechanism】 The amplifier board has overheat protection, over voltage protection, under voltage protection and short-circuit protection.