Feature:Make your Car audio sytem and Home Theater AV HiFi Surrounding system become bluetooth compatible and get music from Bluetooth enabled devices.Simply connect this bluetooth audio receiver to your line-in or auxiliary input on your speakers, pair it to your Bluetooth enabled device, and enjoy the wireless music revolution.Whether you want Bluetooth convenience in your car, through your home-theater system, in your kitchen, bathroom, or bedroom,etc.Simple operation,3.5mm Male to Male Audio Connector or 3.5mm Male to Male Audio Cable to connect the speakers and the receiver.High-performance AMP chip can push the headset,and high-power speaker,applicable to all types of speakersPowerful bluetooth,More stronger compatibilityPowered by built-in rechargeable li-ion battery via mini USB port , long working time and low consumption.You can play music through your car stereo and answer phone call via the built-in Mic. Specifications:Dimensions : 54mm(L) x 25mm(W) x 10mm(D)Bluetooth v3+EDR, Class 2Support A2DP V1.2 (built in Mic)Powered by USB 5V DCTransmission Rate:3(Mbps)Built-in microphone Transmission distances of up to 10MSupport A2DP stereo3.5mm stereo inlet socketSleep mode for energy savingSupport Bluetooth hands-free functionUp to 8 hours music playback or continuousWireless music receiver connects to 3.5mm headphone jacksUse with home stereos/speakers, car stereos,headphones etc.Colors: white, blackPackage Included:1 x Bluetooth Music Receiver Built-in Mic1 x Micro USB Power Cable Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.