Mini Invisible Earbud ( Only 1 earphone): more comfortable and Lightweight when wearing. One multifunction-button design, comes with S/M/L ear-tips with anti-shedding features that secure fit different people; it’s hidden, suitable for a variety of scenes
Super Quality Sound: with HD Stereo chip, your conversation is more clearly and the music is more stereoscopic
BLUETOOTH 4.1+EDR Technology - For unparalleled access to your audio, Bluetooth 4.1 provides a faster and more efficient connection with fewer delays, resulting in the best listening experience possible.
Great Battery Life: playing music for up to about 4 hours on a single charge and 180 hours of stand-by (According to volume and music type), only take 1.5 hours to fully charged, battery status displayed on IOS devoice
Warrenty Service: 30 days no-questions-asked return policy and lifetime product service.
Mini Invisible Bluetooth Earbud V4.1 Stereo Wireless Bluetooth Earphone with Built-in Mic Sports Noise Cancelling In-ear Earphone For Iphone Samsung And Other Android Phones (black) - B074KGBWH9