Product Features: 1.Bluetooth Audio Receiver,U-Disk Play,Remote Control. Meet the daily use of equipment.vaorlo,supports to pair with mobile devices (such as mobile phones, tablets) via Bluetooth for audio transport.Make the older speaker devices work like the Bluetooth devices. 2.U-Disk Play,no need driver,plug and play ,support MP3/APE/FLAC/WAV/WMA music format. 3.Remote Control,you can use the IR remote to control the adapter,easy to use. 4.With external antenna,enhance signal, can barrier-free transmission distance. 5.No Delay, lossless decoding technology, enjoy HIFI sound quality. 6.For Car Kit/Wired Speaker/Home Speaker/Speaker Power amplifier/Headphone . Purchase Notes: Powered By USB Charging(No built-in battery ) Support MIC input, suitable for karaoke, lossless transmission, live theater music effect, family KTV karaoke more carefree and happy. Product : Product Name: Multi-Function Bluetooth Audio Receiver Adapter Product Material:Aluminum Alloy lnput Interface: Coaxial/Mic/USB U-Disk Output Interface: 3.5mm AUX/L R RCA audio interface Bluetooth Protocol Support: A2DP/AVRCP/HFP/HSPFrequency Operation Mode: key switching, remote control USB U-Disk Support: WMA/WAV/FLAC/APE/MP3, etc Bluetooth Decoding: Bluetooth Version: V5.2 Bluetooth Distance: 15 meters Color: Gray Material: aluminum alloy Package Contents: 1x Bluetooth Audio Receiver Adapter 1x Remote Control 1x 3.5MM Audio Cable 1x RCA Audio Cable 1x Typc-C Power Cable 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.