Function:1.HIFI:Mini sound receiver upgrades to experience Bluetooth function, connect the normal speaker and Bluetooth to play music and experience HIFI shocking sound quality. 2. Support U Disk Playback: Mini power amplifier can enjoy lossless sound quality experience. U disk plug and play, built-in HD sound decoder, no driver, support lossless music playback. 3. Wireless IR Remote Control: Bluetooth sound receiver with infrared remote control, support volume adjustment, signal switching and song switching, convenient and fast. 4. Mic interface: Mini power amplifier has MIC interface, true lossless transmission, live theater sound, family karaoke more fun. 5. Bluetooth 5.2 Chip: The mini sound receiver is Bluetooth 5.2 chip, stable connection rejects delay, support all types of speaker computer equipment on the market. Usage: Plug and Play Specifications: Item Type: Mini Sound Receiver Material: Aluminum Alloy Remote Control Battery Type: Built-in 160mAh CR2025 Button Battery (Included) Bluetooth Version: 5.2 Transmission Distance: About