Beffkkip ZK-AS21P 2.1 Bluetooth Amplifier Board, Lead Type

Beffkkip ZK-AS21P 2.1 Bluetooth Amplifier Board, Lead Type

• 2.1 CHANNEL BLUETOOTH AMPLIFIER BOARD: ZK-AS21P Bluetooth amplifier board supports left and right stereo channels plus subwoofer output for DIY speaker systems, home audio projects, and active subwoofer expansion.
• 2 x TPA3255 CLASS D AMP CHIP: Home audio amplifier board uses dual TPA3255 chips with stereo and subwoofer output design. Output power depends on input voltage, speaker impedance, power supply current, and heat dissipation conditions.
• BLUETOOTH AUX USB AUDIO INPUTS: Audio amplifier board supports Bluetooth, 3.5mm AUX line input, and USB sound card input for flexible music playback. Suitable for DIY home speakers, TV audio setups, and desktop audio projects.
• BLUETOOTH AUX USB AUDIO INPUTS: Audio amplifier board supports Bluetooth, 3.5mm AUX line input, and USB sound card input for flexible music playback. Suitable for DIY home speakers, TV audio setups, and desktop audio projects.
• IMPORTANT INSTALLATION NOTES: Extra expansion boards, microphone preamp boards, pure power amplifier boards, speakers, and power supply are not included. Do not reverse positive and negative terminals. Use a suitable protected power supply and keep the board well ventilated.