This Bluetooth audio power amplifier module is designed to replace a damaged unit and delivers reliable performance. The 2.1 channel power amplifier board is easy to install and convenient to replace. It provides stable and fast Bluetooth connectivity with wide device compatibility. The amplifier board supports two input methods: Bluetooth and AUX input. Users can adjust frequency, volume, treble, bass, and other audio settings. Specifications: - Size: 118x100x22mm - Bluetooth Version: 5.0 (range up to 10 meters, no shielding) - Input Sensitivity: 500mV - Audio Input: AUX + Bluetooth - Channels: 2.1 - Chipset: TPA3116D2 - Power Supply: DC 12-24V/5A - Compatible Speaker: 20-100W, 4-8 ohm - Output Power: Up to 50W per channel (Left and Right), up to 100W for subwoofer - Color: Black - Material: ABS Package Includes: 1 x Amplifier Board Set 1 x English User Manual Note: The package includes only the items listed above. Other accessories are not included. Lighting and display settings may cause slight color variations between the product image and the actual item. Measurement tolerance is +/- 1-3cm.