EC Buying ZK-502B Bluetooth-Compatible Digital Amplifier Board 50Wx2 Dual Channel Amplifier Board with Shell Without POP Sound

EC Buying ZK-502B Bluetooth-Compatible Digital Amplifier Board 50Wx2 Dual Channel Amplifier Board with Shell Without POP Sound

Enjoy uninterrupted music transitions with no annoying POP sound during power-on, song switching, or pause on the ZK-502B Bluetooth-Compatible Digital Amplifier Board. Amplify your audio with a wide power supply range of DC4.5-27V Switch effortlessly between Bluetooth-Compatible mode and headphone (LINE IN) mode on the ZK-502B Amplifier Board. Connect with ease using two power interfaces - terminal block and DC 2.1MM socket, compatible with most laptop power interfaces. Safeguard your power input with reverse connection protection Elevate your audio experience with the ZK-502B Bluetooth-Compatible Amplifier Board's dual audio input modes - Bluetooth-Compatible and LINE IN. The acrylic shell provides protection while offering a sleek design. Power up your board with a wide supply voltage range for versatile usage Seamlessly pair your devices with the ZK-502B Bluetooth-Compatible Amplifier Board. Upon entering Bluetooth-Compatible mode, simply connect to "XY_BT" on your phone to enjoy audio. Experience hassle-free connectivity and crisp sound output with this dual-channel 50Wx2 Amplifier Board Enhance your audio setup with the ZK-502B Amplifier Board's convenient features. Long press the "PLAY/M" button to switch between modes effortlessly. Whether you prefer Bluetooth-Compatible streaming or wired LINE IN input, this board offers versatility and ease of use Product Highlights:
1. No annoying POP sounds such as power on, song switching, pause, etc;
2. Wide supply voltage: DC4.5-27V;
3. Two audio input modes: Bluetooth-Compatible mode and LINE IN mode;
4. Two power supply interfaces: terminal block and DC2.1MM socket (compatible with most laptop power interfaces);
5. Power input anti reverse connection function;
6. Acrylic shell protection;

Operating instructions:
1. Mode selection
The module has two modes: Bluetooth-Compatible and LINE IN. When the Bluetooth-Compatible amplifier board is not plugged in with an audio head, it defaults to Bluetooth-Compatible mode when powered on; When the amplifier board is plugged into the audio head, it defaults to LINE IN audio input mode when powered on; You can also switch modes by long pressing the "PLAY/M" key. 2. Connect Bluetooth-Compatible
When switching to Bluetooth-Compatible mode or default Bluetooth-Compatible mode and just powering on, the English message "The Bluetooth-Compatible device is ready to pair" will be displayed, indicating that the device has entered Bluetooth-Compatible mode and is waiting for pairing; The device name of the Bluetooth-Compatible amplifier board found by the Bluetooth-Compatible search on the mobile phone is "XY-BT". When you click connect, the Bluetooth-Compatible amplifier board will prompt "The Bluetooth-Compatible device is connected successfully", indicating that the amplifier board is successfully connected to the mobile phone and can play music.