Features :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;Sleep mode for saving power;3.5mm stereo audio output;Compatible with home stereos / speaker, car stereos, headphones;Specification :Type: Bluetooth Music Receiver;Bluetooth Version: V3.0 EDR, class 2;Frequency: 2.4GHz;Transmission Range: Up to 10m / 33ft;Profile: A2DP; I/O: 3.5mm port, Micro USB charging port;Operation Time: Up to 8h;Certification: CE, FCC, BQB;Size: 5.5*2.5*1cm / 2.2*1*0.4";Package Included :1* Bluetooth audio receiver;1* USB cable;1* 3.5mm connector;1* User manual.