High quality wireless Bluetooth 4.2 stereo headset offers you remarkable sound quality. Enhanced noise reduction, good choice for listening music, watching movie, answering phone calls, etc. Built-in microphone makes hands-free calls easy. Over-ear design with skin-friendly protein earmuff, quite comfortable for long time wear. Foldable design, convenient to store and carry. Functions: power off/on, play/pause, volume up/down, answering/ending call. With 3.5mm audio jack, support non-Bluetooth devices. Built-in 300mAh Li-ion battery supports charging via USB cable. With CE, FCC, RoHS certifications.