New features: Bluetooth 4.1and CSR 8645 Chipset strengthen the signal 2 times, easy and fast pairing with phones, ipad.With APT-X audio decode technology,Powerful audio driver offers balanced audio and crystal clear sounds Comfortable stable Earbuds: Portable and Lightweight Bluetooth Headphones,unique flexible and comfortable design avoid any pains after hours of wearing and 3 ear tips of different size ensure you get it perfect fit and remain stable in your ear. Hi-Fi Stereo Sound: Built-in HD Microphone with CVC6.0 noise cancellation,ensure Hi-Fi Stereo Music Sound and Strong Signal. Let you get high quality and clear voice even in noisy environment like inside a gym and running/cycling on the road Support Devices: iPhone 6S, 6S Plus, 5 5c 5s 4s,iPad Air, Samsung Galaxy S6,S5,S4,S3 Note 4 3, HTC M9 M8 M7,LG Flex 2 G3 G2, Apple watch and Other Bluetooth Android IOS Smart Cell phones/Devices