Features:Sleep mode for saving power.3.5mm stereo audio output.Compatible with home stereos/speaker、car stereos、headphones.Bluetooth V3.0+EDR music receiver、 transmission range up to 10m/33ft.Support iPhone、 Android phone、 other smart phones which with Bluetooth A2DP function.Support hands free、 can connect microphone and support phone calling through Bluetooth receiver.Specification:Condition: Brand NewType: Bluetooth Music ReceiverMaterial: PlasticBluetooth Version: V3.0 + EDR、 Class 2Color: BlackTransmission Range: Up to 10m/33ftFrequency: 2.4GHzI/O: 3.5mm port、 Micro USB charging portOperation Time: Up to 8hSize 53mm*25mm*11mmProfile A2DPCertification: CE、 FCC、 BQBPackage Included:1¡ÁBluetooth Audio Receiver1¡ÁUSB Cable1¡Á3.5mm Connector1¡ÁUser ManualNote:Due to the light and screen difference、 the item's color may be slightly different from the pictures.Please understand.Make sure you don't mind before you bid. Please allow 1-2mm differences due to manual measurement.