Features: Simple design power amplifier: Bl20C power amplifier for home cinemas speaker system, small but compact size and excellent build quality. 2.1CH Blue tooth5.0 power amplifier. Blue tooth connectivities is easy to use and allows you to quickly connect your home audios devices. With buttons to change the previous/next track. The bass and trebles buttons are easy to use to meet your different needs. Multiple input modes: supports MP3/WMA/APEs/FLAC/WAV Udisk audios input. Udisk input for convenient and portable use, up to 32GB capacity. Audios input: Udisk/Blue tooth/RCA for powered subwoofer + passive speaker. Classical TDA7498E chip: Get a clear and clear sound without audibles noise even at high performances. Advanced circuit designs ensures HiFi sound, Suitable for phone,PC, Laptop, TV, DVDS, etc. 160 Wattx2 (98dBSNR, 0.05% THD): More power for a loudS and clear sound, 0.05% harmonics total distortion make it a great home audios. Supplied quality 24V/4.5A power supply enough to operate most passive speakers and active subwoofers. What you get: BL20C amplifierx1, Blue tooth antennax1, user manualx1, power supplyx1, power cablex1. Specifications: Material: aluminum alloy Plug standard: UK/EU/Austrilia/US(optional) Model: BL20C Input mode: Udisk/Blue tooth /RCA Output mode: electric subwoofer + passive speaker Input priority: USB flash drive > Blue tooth =RCA SNR: 98dB THD:0.05% Operating voltage: 19-35Voltage USB flash drive: USB 2.0, suitable for USB 3.0 Usb flash drive capacity: Maximums 32GB, each file does not exceed 100MB Supported format: MP3/WMA/APEs/FLAC/WAV Maximums output power: 160Wx2+any power subwoofer Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xBL20C amplifier 1xBlue tooth antenna 1xUser manual 1xPower supply 1xPower cable