BT-1 Stereo Wireless Bluetooth 4.1 Sport Wireless in-Ear Headphones Bluetooth Wireless Remote Shutter. Bluetooth Wireless Remote Shutter(Open the phone to take pictures of the function in a row by two + button to tabke picutres) Clear, rich stereo music streamed wirelessly. Ideal for an active lifestyle, Magena BT-1 Sport Bluetooth headphone allows you to both wirelessly enjoy music and take call during workout Bluetooth 4.1 with aptX codec for high-fidelity stereo music and clear speech, You can begin enjoying CD quality stereo sound instantly. Locks In and Won't Fall Out. This headset is designed to lock in so you can focus on your workout. A behind-the-ear shape design means whatever the intensity of your workout you will get the perfect fit. It will stay firmly and comfortably in place. Exercise is about breaking free so don't let wires hold you back. Skip tracks, control volume, take calls with a quick tap of your headset.