Mini Hifi Bluetooth Power Amplifier Stereo. Features: Bluetooth 5.0 Technology Achieves Stable and Faster Transmission Speed, Widely Compatible with More 99% Device, Such As Phone, Tablet, Computer, TV, Set-box, CD Player Etc. The Amplifier Has Direct Reading Function for U Disk and TF Card, Makes It Convenient to Enjoy High-quality Music. U-disk and TF Card Support MP3,WAV, APE, FLAC Lossless Formats . (Cards Not Included) Adopting Classic TPA3116 Chip, Max Output Power Can Reach 50W*2, Enough for Most Home Desktop/bookshelf/indoor Passive Speakers (4-16). The Sound is Clear and Clean Without Any Audible Noise Even at High Output. Small Size and Exquisite Appearance, Attractive Chassis with LED Display and Power / Mode Switch, Very Suitable for Home and Desktop Audio System Use. Specifications: Type: Bluetooth Power Amplifier Material: Plastic+ Metal Output Power: 50W + 50W Power Requirements: DC9V-24V Bluetooth Distance: at Least 12m (unobstructed) Bluetooth Agreement: Bluetooth 5.0 Speaker Impedance: 4-16 Audio Input: 3.5mm Stereo Input, USB Audio Input, Bluetooth 5.0, RAC Input, TF Card, USB Input (can Connect to Computer, Mobile Phone, OTG) Support Format: MP3/WAV/APE/FLAC Product Size: 110 * 90 * 50mm/4.32*3.54*1.97in (L*W*H) Weight: 160g/5.64oz Packages: 1* Bluetooth Power Amplifier . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.