3.5mm Bluetooth Wireless A2DP Stereo Audio Hifi Dongle Transmitter Adapter<br /><br />Colour: Black<br />Supported Bluetooth protocol compliant with Bluetooth 4.0 A2DP HSP HFP OPP OBEX DUN<br />Frequency range 2.4GHZ-2.4835GHZ<br />Battery capacity 250MA<br />Charging current 150MA<br />Charging time 2 hours<br />Standby time of about 720 hours<br />Operating Voltage 3.3 ~ 4.2V<br />The maximum operating current of 30mA<br />8-10 hours of continuous working time<br />Size 60 * 36.5 * 16MM<br />Bare metal weight: 22.5g<br />Packing carton<br />Effective distance of 8 to 15 meters (up to 20 m Roll)<br />Features:<br />The appearance of small， beautiful， easy to use， compatibility， Bluetooth， long distance<br /><img src="http://img6.eachbuyer.com/x9/p100/eb05672_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb05672_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb05672_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb05672_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb05672_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb05672_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb05672_7.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb05672_8.jpg" />