Tech Life Products Wireless Bluetooth Headphones QY8 Earbuds for Iphone Android Samsung Galaxy Windows Phone Headset Built-in Mic (White) Latest QY8 Bluetooth 4.1 and CSR 8645 Chipset strengthen the signal 2 times, easy and fast pairing with bluetooth device Comfortable stable In Earbuds: Portable and Lightweight Bluetooth Headphones, flexible design and built-in earhook interchangeable Sweat proof. Perfect fit and remain stable in your ear when Exercising, Biking, Running, Walking or Weight Lifting Features Hi-Fi Stereo Sound With Built-in HD Microphone with CVC6.0 noise cancellation,give bluetooth earphones Hi-Fi Stereo Sound and Strong Signal. Let you enjoy high quality sound for music and calls even in noisy environment like the gym Powerful Rechargeable Battery:Built-in polymer lithium battery(100mAh), up to 160 hrs of stand-by,up to 8 hrs of talk time and 2 hrs charging time. Wireless Headphones can pair with 2 bluetooth device at the same time with 10-meter working distance