ZK-1001U Amp Bluetooth 5.3 Mono Amplifier Board Mini Audio Amps with TWS | 100W Amp with Boost for Home Outdoor DIY Speakers with 100W Power Output, Treble & Bass,USB/AUX/BT Input, DC 9-24V

This compact Bluetooth audio amplifier board is a mono channel amplifier rated at 100W. It is intended for connection to a passive speaker (20-100W, 3-8) and requires a DC input of 7-24V/4A or higher. It cannot be connected to AC power. It is suitable for use with 7.4V, 12V, and 21V batteries, but is not suitable for 24V batteries. This mono amplifier utilizes a TPA3116D2 chip, with a distortion rate under 0.3 %. The upgraded Bluetooth 5.3 chip supports AAC decoding, APP, and TWS, providing low latency.

This outdoor speaker amplifier features a built-in boost circuit for optimal voltage output. Its auto-boosting circuit 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 excellent for outdoor use with battery-powered speakers. This mono amplifier module supports TWS Box mode. By connecting a pair of these independent Bluetooth power amplifier boards via the TWS box function, you can achieve left and right channel stereo sound. This Bluetooth power amplifier board provides 4 types of inputs: AUX, USB flash drive, USB sound card, and Bluetooth wireless connection. The upgraded large chip supports Bluetooth 5.3 with low latency. The wireless range for audio devices (smartphones, tablets, laptops, etc. ) is up to 15m (49ft). Driven by the TPA3116D2 chip, a high-performance Class D power amplifier chip, this device maintains ultra-low distortion across the entire audio frequency band while delivering high-definition sound quality. This mini audio power amplifier includes treble and bass controls, allowing you to adjust them to match your musical preferences. This mini amplifier features a multi-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