Audio Amplifier Board Zk-1002M 2 * 100W 2 Channel Amplifier For Theater Loudspeakers Description: Bluetooth amplifier: high-quality mini amplifier board Bluetooth version 50, the transmission efficiency is higher, the transmission distance is longer High Efficiency: Two-channel audio power amplifier module, max output power 2x100W, suitable for heat sink Protection mechanism: with overheating, overcurrent and short circuit protection, to prevent complete failure, protect against damage The output audio is unfiltered, using general purpose filter elements, high quality audio Great for DIY speakers Widely used in car, home theater, etc. Specification: Model: ZK-1002M Net Weight: 66g Audio input: Bluetooth AUX U disk computer USB (plug and play) Audio output: active speakers, passive speakers Adapter power supply: DC 5 - 24 V Number of channels: left and right dual channels (stereo) Bluetooth version : 5.0 Output power: 100W x 2 Big Heatsink: 36 x 25 x 10mm / 1.42 x 0.98 x 0.39 inch Adapter speaker: 20 - 200 W, 4 - 8 Ω Safety mechanism: overheating, overcurrent, short circuit Black color Material: plastic; Size chart: 60 x 60 x 29 mm / 2.36 x 2.36 x 1.14 inch The package includes: 1 piece 2 x 100W Bluetooth5.0 power amplifier module kit