Features: brand new and high quality brand new and high quality Bluetooth-compatible 5.0 receiver, NFC connection + dual audio output 3.5+2RCA dual audio output jack support U disk/TF card playback.suitable for more devices Dual-port playback, TF memory card + USB port, can support U disk mobile hard disk Connecting to 3.5mm audio interface, the speaker without Bluetooth-comptible function can also be played wirelessly 10 meters/32.8ft long distance transmission, built-in antenna, reduce signal interference NFC Bluetooth-compatible connection, built-in NFC chip, you can directly for touch the receiver with the NFC mobile phone to connect Specifications: Name: USB Bluetooth-compatible Adapter Chip: NFC Bluetooth-compatible version: 5.0 Colour: Black Material: ABS plastic Transmission distance: <10 meters/32.8ft Size: approx 80×43×25mm/3.15x1.69x0.98in Support: U Disk TF Playback For: Phone Tablets TV Speakers Home Theater Amplifier etc. Package Includes: 1x Receiver 1x 3.5mm Audio Cable 1x RCA Audio Cable 1x Charging Cable 1x Instruction note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.