Winsbotech Latest&nbsp;Bluetooth 4.0 Wireless Sweatproof Running Gym Stereo Headphone Lightweight Sport Earbud for iPhone 6 6S Plus Galaxy S6 and Android Phones (black) NEW BLUETOOTH VERSION --- Latest Bluetooth 4.1and CSR 8635 Chipset strengthen the signal 2 times, easy and fast pairing with phones, ipad. CRTSTAL CLEAR SOUND --- Built-in Mic with noise cancellation technology ensure high-fidelity stereo music sound and strong signal. Make you get high quality and clear voice even in noisy environment like inside a gym and running or cycling on the road. COMFORTABLE SOFT RUBBER EARBUDS --- 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. POWERFUL RECHARGEABLE BATTERY --- Built-in 85mAh lithium battery with protection board, up to 150 hours of stand-by, up to 6 hours of talk time, up to 6 hours of listening to the music. UNIVERSAL COMPATIABILITY --- Support Android IOS Smart Phones and other Bluetooth Devices such as 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.