2x50W Bluetooth Digital Amplifier Board Audio Amp Board w/ Acrylic Shell without POP Sound Unassembled

2x50W Bluetooth Digital Amplifier Board Audio Amp Board w/ Acrylic Shell without POP Sound Unassembled

Features:
- No annoying POP sounds when power on, switch songs and pause
- Wide power supply voltage: DC4.5-27V
- Two audio input modes: Bluetooth mode and headset (LINE IN) mode
- Two power supply interfaces: wiring terminal and DC2.1MM socket (compatible with most laptop power interfaces)
- Power input anti-reverse connection function
- With acrylic shell to keep the board well protected
- Premium capacitors

Specifications:
- Power Supply: DC4.5-27V
- Output Power: 50W*2
- Protection Functions: Anti-reverse connection, over-voltage, under-voltage, over-temperature, short-circuit protections
- SNR: 102dB
- Channels: 2-Channel Stereo
- Weight: 87g

Operation Instructions:
1. Mode Selection:
There are two modes, namely, Bluetooth and LINE IN. When Bluetooth power amplifier board is not plugged with an audio cable, it is in Bluetooth mode by default.  When the board is plugged with an audio cable, it is in LINE IN input mode when it is power-on. You can also press PLAY / M button to switch modes.

2. Bluetooth Connection:
When you switch to Bluetooth mode or just power on in the default Bluetooth mode, "The Bluetooth device is ready to pair" will be broadcasted. It means that it is in Bluetooth mode and waiting for pairing. Use your mobile phone to search for XY_BT (the amp's name) and click to link. It will prompt "The Bluetooth device is connected successfully", indicating that they are successfully connected, and music can be played now.

Package Included:
- 1 x Set of Bluetooth Digital Amp Board

Note: Assembling is needed. Power supply is not included. It can also be used with laptop power supply.