【Handsfree Design & Mic Mute Function】Mpow bluetooth headset supports the mic mute function to protect your safety of information, and it also supports the general button function to free your hands. 【Perfect Life Battery for Driver】Up to 6 hours continuously music playing time keeping connected socially and musically. Powerful lithium ensures up to 280 hours long stand-by time. 【Simplify Design With 180 ° Rotatable Earpieces】Elegant design allows comfortable use. 180 ° adjustable earbud fits perfectly for your right or left ear. 【Advanced CSR Chip & Bluetooth 4.1 Technology】The premium CSR chip and stable BT 4.1 brings you incredible stereo sound quality. Ensure stable signal transmission for hassle-free conversation and pleasant music. NOTE: Allow two Bluetooth smartphones to connect at the same time. 【2 Year】Mow Bluetooth headset includes a 45-Day Money Back & 24-Month Worry-free ! If you have any question, please contact with me.