ZK TB21 Bluetooth 5.0 Stereo Audio Receiver Amplifier Board 2.1Channel Mini Wireless Digital AUX Amp Module Bass and Treble Control for Home Passive Speakers Subwoofer 50Wx2 100W

• 2.1 CH stereo output power 50watt * 2 100watt, working voltage range DC12-24V, for 4-8Ω, 50watt-300watt passive speakers.
• Treble & Bass and subwoofer control: With subwoofer volume control, L and R channels Treble & Bass independent control. Built-in low pass filter for subwoofers with sub frequency control, small simple compact design but practical and powerful.
• Bluetooth and AUX Inputs: almost compatible with all home audio devices such as smartphones, iPhones, iPad, MP3s, PC, CD players, etc. Enjoy surround acoustic audio with the speaker.
• Ensure Safety: This Bluetooth amplifier board has a bottom plate and a top plate, supporting reverse connection protection, Over-voltage, and Under-voltage Protection, Over-heat protection, and Short-circuit protection.

Note: This module doesn't come with the original IC chip TPA3116D2 as It's a copy of the original Zk-TB21 amplifier Board.