"VoxTubeTM 100 is Bluetooth® v3.0 compliant mono headset in simple and stylish design. It is compact in size with excellent performance of up to 10m wireless range. The A2DP feature supports not only hands-free phone conversation but also music enjoyment. VoxTubeTM 100 supports pairing to two Bluetooth® enabled devices at the same time, and supports voice prompt and dialing. The built-in Mic and CVC audio can well remove surrounding noise and ensure high-quality music enjoyment. The considerate control design brings users uttermost convenience for Bluetooth® pairing, call making and call answering. With different sizes of ear-buds that you can select the most fit for yourself. Built-in battery supports up to 4 hours talk-time, 4 days stand-by time."United States