Light and handy design makes it comfortable to wear. Long standby time allows you to enjoy music longer. Hifi stereo sound quality ensures better music experience. Supports voice call and wireless connection with cellphone laptop PSP etc.. A perfect gadget for enjoying music indoor or outdoor. - Model: SX-910A - Color: Black - Sporty closed back on ear designed - Control music and calls from the headphones - Frequency range: 2.4026~2.480GHz - Bluetooth V2.0 class 2 - Operating Range: up to 10m - Supports noise reduction - Music stops when a call comes in resumes when the call is over - Charging time: about 3 hours - Music playing time: about 6 hours (manufacturer rated) - Talking time: about 10 hours (manufacturer rated) - Standby time: about 135 hours (manufacturer rated) - Works with all compatible Bluetooth-enabled phones or music devices - Well design and easy to use - Package included: - 1 x SX-910A Bluetooth Headset - 1 x 100~240V AC Charger (2-flat-pin plug) - 1 x USB charging cable - 1 x English User Manual