Full textured metal body‎,‎ a triangular shape‎,‎ highlighting the three‎-dimensional visual sense‎,‎exquisite workmanship‎.‎Using ultra‎-light aircraft‎-grade aluminum‎,‎ through 12 steps to fight the process‎,‎ anodized‎,‎ build the whole texture of the metal machine‎.‎Bluetooth 4.0 + EDR Bluetooth technology‎,‎ effective transmission distance of 10 meters‎,‎ high‎-fidelity good music‎.‎Two 3W audio drivers and passive sub‎-woofer immerse you in an impressively full sound quality and robust bass Automatically connect to the last‎-connected device when turned on‎.‎ Dual‎-speaker stereo‎,‎ high‎,‎ medium‎,‎ bass full‎-frequency coverage‎.‎Compatible with all Bluetooth‎-enabled devices‎,‎ outstanding connection range of up to 10 meters‎.‎ Built‎-in microphone gives Bluetooth hands‎-free calling features‎,‎ and enjoy the freedom‎.‎Large‎-capacity polymer battery 5 hours of continuous playback security‎.‎Sound quality is excellent‎,‎ three‎-band equalizer‎.‎Connect non‎-Bluetooth devices such as MP3 players using 3.5mm AUX Cable ‎(‎included‎)‎Technical Specification‎:‎Bluetooth version ‎:‎ V4.0+EDRProfile Support‎:‎ HSP/HFP/A2DP/AVRCPTransmission Distance ‎:‎  10mFreq ‎:‎ 20Hz‎-20KHzS/N ‎:‎ 85dBDriver unit‎:‎ 33mmInput Impedance‎:‎ 3W x 2Charging Voltage‎:‎ 5VWorking Voltage‎:‎ 5VCharging time‎:‎ 2 HoursStandby time‎:‎ 300hrsTalking Time‎:‎ 6 HoursPlaying Time‎:‎ 5 HoursStandby Time Up to 300 HoursBattery Capacity‎:‎ 600mAH built‎-in lithium battery Battery Voltage‎:‎ 3.7V 500mA Battery Icon can displayed on iPhoneOutput‎:‎ 3W*2Compatible with‎:‎ Laptop‎,‎Mobile phone‎,‎MP3‎,‎PC‎,‎Tablet PCSupports‎:‎ Bluetooth‎,‎Hands‎-free Calls‎,‎Volume ControlConnection‎:‎ WirelessInterface‎:‎ 3.5mm Audio‎,‎Power Charge PortAudio Source ‎:‎ Bluetooth Enabled Devices‎,‎Electronic Products with 3.5mm PlugMaterial‎:‎ Aluminum‎,‎ ABSMicro USB Charging Port