Bluetooth Headphones,Syllable G600 Wireless Headsets with Mic Stereo for iPhone Samsung iPad Tablet and PC - White Two built-in high sensitive microphones, noise reducing like most high-end cellphones. Cortical earmuffs design, comfortable wearing, ventilation performance. Support the 2 hours 'rapid charging, and provide up to 12 hours working time Support wired mode, can be power-supplied through 3.5mm audio cable when run out of power Large diameter of 40mm horn and HIFI speaker, phonoreception more shocking. Stronger expression in low frequency parts;Two built-in high sensitive microphones, noise reducing like most high-end cellphones Built-in high-capacity lithium battery, supports 2-hour fast charge and provides up to 12 hours of music life.