In-ear style, snugly fit your ear for comfortable long-time wearing. High-class look: metal blasting process + contrast color design with plating craft. Excellent noise cancellation lets you enjoy high-quality clear sound. Support connecting with 2 smartphones at the same time.35-degree opening collar clip for conveniently clipping the headset to your collar.different sizes (S/M/L) are included for your choice. One-key to retract the earphone cable, easy and convenient.Long standby time, more than 75 hours after a full charge.Display battery level on iPhone and some Android smartphones.