NFC Sensor Pairing Connection, built-in NFC sensor chip, close to the second automatic -up window, compatible with all kinds of NFC feature phones, reducing tedious operations. Connect two devices: With the 3.5mm AUX port and 2 port, it can be connected to non-Bluetooth car audio systems, home stereo, wired headphone/speaker, Amplifier/Home Theater.etc. Then you can enjoy wireless Hi-fi music streaming! Super Stable Connection: Our Bluetooth audio adapter is fitted with a Bluetooth 5.3 chip for steady pairing, fast transmission and a wide signal range (33 feet/10 meter). Support USB U-Disk Play: Lossless decoding, supports WMA/WAV/FLAC/APE/MP3 and other formats to achieve lossless sound quality. Built-in 200mAh rechargeable lithium battery,,music time 6-8 hours, long battery life,which is convenient and worry-free. Remote Control,you can use the IR remote to control the adapter,easy to use. For Wired Speaker/Home Speaker/Power amplifier/Headphone/Car kit ... Tips: It's a NFC Bluetooth audio receiver only, not a transmitter. Can only be used for audio transmission,So you couldn't use it for your keyboard, mouse, file transfer. Product Name: NFC Bluetooth 5.3 Audio Receiver Bluetooth Version: V5.3 Battery Capacity: 200Amh Bluetooth protocol: A2DP/AVRCP Bluetooth distance: 10 meters Charging Time: 1-2 hours Music Time: 6-8 hours Standby Time: 90 days Interface: R L /3.5MM AUX Stereo/USB U-Disk Signal to noise ratio: 90dB Function description: NFC Connection,USB U-Disk play,Bluetooth Connection. Support Multiple Audio Output Ports: Can Connect With 3.5mm Headset, Stereo System, Speaker. System Support: All Bluetooth audio device; NFC Available Device. The shaded part of the product in the picture is a rendering. The actual product is black and does not affect use. Colour:Black Material:plastic Package Contents:1 x Audio Receiver1 Supply Line1 x AUX Audio Cable1 x Cable1 x Remote Control Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.