2-Pack ZK-1001U Mono Bluetooth AMP Board with TWS,100W Vehicle Amplifier Input 9-24V Wide Voltage Home Audio Amplifier Board,Supports AUX/USB/Bluetooth Input for Home Speaker,Car Audio DIY

The ZK-1001U Mono amplifier board delivers up to 100W of output power and supports a broad 924V input voltage. This Bluetooth Power Amplifier is a premium and effective audio device, ideal for DIY audio and high-power speaker projects. It is commonly used in areas such as car, home, or office DIY Bluetooth audio. Equipped with a genuine TPA3116 mono amplifier chip, it features a built-in intelligent boost circuit that can automatically adjust the input voltage (9V/15V) to a steady 19V or 24V (default: 24V). An extra red switch (1 for 24V, ON for 19V) is provided, enabling manual adjustment based on different speakers to achieve the optimal audio-visual experience. It is well-suited for outdoor DIY projects using battery-powered speakers. The upgraded Bluetooth 5.3 chip supports AAC decoding. It also supports a one-click TWS pairing function to wirelessly synchronize two amplifier boards without a wired connection, achieving an immersive left/right channel stereo effect, which is very suitable for building your own wireless speaker system. It features high-fidelity sound quality, low latency, and support for multiple audio input methods, making it simple and professional for various uses. 3 Knobs, 4 Audio input modes. The knobs include high-frequency adjustment, low-frequency adjustment, and a multifunctional knob. The operation of the multifunctional knob is straightforward and smooth: long press to turn on/off, click to play/pause, double-click for next track, triple tap to enter TWS mode. It supports Bluetooth, USB Flash drive, USB sound card, and AUX input modes, easily compatible with mobile phones, computers, MP3 players, and more, offering great practicality. An extra power cable part is included to connect DIY battery projects, providing added convenience