15 Hours Long Talking Time: Powerful rechargeable lithium battery provides up to 15 hours of continuous talking/music time and 220 hours of standby with a single charge. Professional A04 solution & advanced CVC 6.0 noise canceling technology ensure its stable connectivity and crystal clear sound quality. Supports mute function for both PC and Phone chat.(Note:For Skype Call on Windows 10 version, the mute function will be invalid). Comfortable & Lightweight: With its customized padded ear-pad and flexible headband, also it weights only 1.48 oz, you won't feel it as a burden even after a long time wearing. Expecially a good choice for those who are not comfortable with the "in ear" type headsets. 2 Devices Connection Simultaneously: We are indicated to provide better product experience, you may connect two devices in same time and don't need to disconnect every-time to switch to another device. Hassle-Free Purchase Experience: We provide 12-month warranty and 30 days money back, friendly, easy-to-reach support. - Free Lifetime Technical Support. If any unsatisfactory, please feel free to contact us via dzmsy2005@hotmail.com, Golvery always give customer a best solution.