一本到在线,97精品久久,精品不卡视频,91色区,精品福利一区二区三区,手机在线中文字幕免费,久操福利视频

?Bluetooth 5.3
?Digitally  suppress noise and provide natural environment enhancement
?Clear calls in loud environments
?Hear the surrounding sound when use Bluetooth  
?Three functional modes
?Six levels of sound adjustment
?Multiplication button
?Neck hanging and in-ear hook design
?Recharging battery and Type-C charging port
?Auto shutdown when not into ears
?Low-battery notification
?Multiple sizes of eartips
?Include storage  case 
?Battery up to 10 hours (Bluetooth)- 20 hours(Noise Reduction)