Wireless Headphone BT V4.1 In-ear Earphone Outdoor Sports Music Headset Earbuds Hands-free Calling Built-in Mic for Smartphones Tablets and Other BT-enabled Audio Devices

Features: Adopts advanced BT4.1 technology, which provides you stable connection and transmission, widely compatible with most BT-enabled devices. Built-in high sensitive microphone for hands-free calls, convenient for you to answer/hang up/reject the call without holding phone in hands when doing sports. Ultra-light weight and ergonomic design brings you comfortable and cozy wearing experience. Easily controlling the buttons to answer/hang up/reject call, play/pause music, adjust the volume and switch previous/next song. Supports last number of redial function(double click the power button). It will provide super clear sound quality and bring you a wonderful music enjoyment.