Features: This music receiver is designed to receive music from mobile phones or transmitters via bluetooth function *100%Brand New And High Quality*Compatible With Most A2DP Stereo Bluetooth-Enabled Devices Such As IPod、 IPhone、 Mp3/4/5 Etc*Make your Car AUX audio sytem and Home Theater AV HiFi Surrounding system become bluetooth compatible、 get music from Bluetooth enable device*Low Power Consumption*asy To Operate*Charge The Rechargeable Battery Via Any USB Port For Maximum Listening*Wireless Music Receiver Connects To 3.5mm Headphone Jacks*Powerful bluetooth IC、More stronger compatibility *Up To Long time Music Playback Or Continuous With Mini USB Charger Specifications: 1.Bluetooth v3.0+EDR2.Support A2DP V1.2 (built in Mic)3.Powered by USB 5V DC4.Transmission Rate:3(Mbps)5.Built-in microphone6.Transmission distances of up to 10M7.Support A2DP stereo8.3.5mm stereo inlet socket9.Sleep mode for energy saving10.Support Bluetooth hands-free function11.Up to 8 hours music playback or continuous12.Wireless music receiver connects to 3.5mm headphone jacks13.Use with home stereos/speakers、 car stereos、headphones etc. Instruction: (1) Pairing: Press and hold the ON/OFF button for 5 seconds、 the LED indicator will flash between red and blue alternately. It is now ready for pairing.(2) Activate your mobile phone's Bluetooth function and search for available Bluetooth devices by referring to your mobile phone user manual for details.(3) Selet "BT310REV " from the list.(4) When paring is completed、 the LED indicator will flash Blue alternately.Package Include:1 x Bluetooth Music Receiver Built-in Mic1 x Micro USB Power Cable1 x 3.5mm Stereo Inlet Socket1 x User Manual in English