Bluetooth version 4.2 lets you enjoy stereo music wirelessly

Built-in microphone, allows for hands-free phone conversation

With TF card slot, enough for enjoying music any time any where

3.5mm audio jack, provides a simple wired connection of a variety of music players without Bluetooth function

Functions: play/pause, volume up/down, next/previous song, answering/ending call etc

Also support FM radio function

Adjustable headband length, very comfortable to wear and easy to carry

High quality polymer 250mAh battery, long standby time and music playing time

Foldable design, compact and portable, easy to carry