Whitelabel MusicJogger Wireless Bluetooth Stereo Headphones, Headphone, Sport Headset, Music Streaming, Noise Reduction Handsfree Voice Calling (Gold) CSR Bluetooth 4.0 chipset, ensure high-fidelity stereo music and clear speech via Noise reduction The smartest way to listen to your favorite tunes on the go, without missing any important calls. The neat fit behind-the-head design eliminates troublesome wires tangling during your workout. Sleek, comfortable, lightweight design with up to 20 hours working time Serves as both a wireless music Headset and Bluetooth phone headset for hands free calling, compatible with all Bluetooth-enabled devices.