ZK-1001UM Bluetooth 5.3 Amplifier Board, 100W Mono Audio Amp with TWS Box Mini Boost Circuit Amps for Home Outdoor DIY Speakers, MIC and Reverb, USB/AUX Input,DC 9-24V (2 Pack)

[2 PCS ZK-1001UM MONO AMPLIFIER BOARD] The ZK-1001UM Mini Bluetooth audio amplifier board is a mono channel amp with 100W rated power. Connect only a passive speaker (20-100W, 3-8) and a DC7-24V/4A or above power supply (cannot be connected to AC; suitable for 7.4V /12V/21V batteries, not suitable for 24V batteries). This mono amplifier uses a TPA3116D2 chip with a distortion rate below 0.3 %, and the upgraded Bluetooth 5.3 chips support AAC decoding, APP and TWS with low latency. [Outdoor Speaker Amplifier with Boost] Built-In Boost Circuit for Optimal Voltage Output.

It features an auto-boosting circuit that intelligently adjusts input voltage (9V/15V) to a stable 19V or 24V (default: 24V. Red switch to 1 is 24V, to ON is 19V). This flexible voltage is ideal for outdoor use with battery-powered speakers. [TWS BOX FUNCTION] This ZK-1001UM is a mono amp. This power amplifier module supports TWS BOX mode. With a pair of ZK-1001UM 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. [BLUETOOTH 5.3 INPUTS] The Bluetooth power amplifier board has 4 kinds of inputs: AUX, USB flash drive, USB sound card and Bluetooth wireless connection. The upgraded large chips support Bluetooth 5.3 with low latency. The range for audio devices (smartphones, tablets, laptops, etc. ) with Bluetooth connectivity is 15m/49ft. [HiFi AMP with MIC Jack and Reverb] The ZK-1001UM is driven by a TPA3116D2 chip, a high-performance class D power amplifier chip. It can make the device maintain ultra-low distortion in the whole audio frequency band and show high-definition sound quality at the same time. This mini audio power amplifier has a MIC Jack and Reverb; with this ZK-1001UM amplifier module, you can not only have high-fidelity music, but also realize Karaoke freedom! [MULTIPLE FUNCTION KNOB] This ZK-1001UM mini amplifier has two multi-function knobs. The Microphone volume knob has 3 different functions: turn the button clockwise/counterclockwise to adjust the microphone volume; click: suppress
voice; long press: enter or exit TWS mode. The Music volume knob has 5 different functions: turn the button clockwise/counterclockwise to adjust the music volume; click: play/pause
; double click: next
track; three hits: previous
song; long press: mode switch