Features:1. Bluetooth V3.0+EDR music receiver， transmission range up to 10m / 33ft.2. Support iPhone， Android phone， other smart phones which with Bluetooth A2DP function.3. Support hands free， can connect microphone and support phone calling through Bluetooth receiver.4. Sleep mode for saving power.5. 3.5mm stereo audio output.6. Compatible with home stereos / speaker， car stereos， headphones.Specification:Type: Bluetooth Music ReceiverMaterial: PlasticBluetooth Version: V3.0 + EDR， class 2Frequency: 2.4GHzTransmission Range: Up to 10m / 33ftProfile: A2DPI/O: 3.5mm port， Micro USB charging portOperation Time: Up to 8 hoursPackage Include:1* Bluetooth Audio Receiver1* USB Cable1* User Manual