2Pack ZK-1001B Bluetooth Amplifier Board, 100W Mono AMP TWS Mini Amps Audio Power Amplifier Module with Box Matching for Home Speaker System, Bluetooth/AUX/USB Input, APP Control DC 7-24V

[HIFI MONO AMPLIFIER BOARD] The ZK-1001B Mini Bluetooth audio amplifier board is a mono channel amp with 100W rated power, and only connects to a passive speaker (20-100W, 3-8), DC7-24V/3A above. This mono amplifier uses a TPA3116D2 chip with a distortion rate below 0.3 %, and another upgraded large chip supports AAC BT decoding, APP and TWS, with low latency. [TWS BOX FUNCTION] Set of 2 pack of ZK-1001B. As a mono amp, this power amplifier module supports TWS BOX mode. With this pair of ZK-1001B mono power amps, you can use these two independent Bluetooth power amplifier boards connected by the TWS box function, and left and right channel stereo can be realized.

[MULTIPLE FUNCTION KNOB] This mini amplifier has only one knob, and it is a multiple function knob: Turn the knob clockwise/counterclockwise to adjust the volume level.
Click: Play/pause.
Double click: Next song.
Three clicks: Enter or exit TWS mode.
Long press: Turn off/on. [BLUETOOTH 5.1 INPUTS] The Bluetooth power amplifier board has 4 kinds of inputs: AUX, USB flash drive, USB sound card and Bluetooth inputs. The upgraded large chip supports Bluetooth 5.1 with low latency. The range for audio devices (smartphones, tablets, laptops, etc. ) with Bluetooth connectivity is 15m/49ft. [Multiple Protection Mechanisms] This ZK-1001B Bluetooth amp module is mini size: 89 x 45 x 20mm, designed with over-voltage protection, under-voltage protection, over-heat protection and short-circuit protection, with a case to protect it