Ecandy Bluetooth Headsets, Mini Lightweight Wireless Stereo Sports/Running & Gym/exercise Headphones Earbuds W/microphone for Iphone,Ipad ,New Ipad, Ipod, Android, Samsung Galaxy, Smart Phones Bluetooth Devices,Blue Wireless Bluetooth earbuds with advanced Bluetooth 4.1 technology. Sweat-proof, durable design, Up to 6 hours of Talk/Playing Time and150 hours Standby Time. Ultra light weight and stylish design for music streaming, handsfree calling, video watching, or gaming. Built-in HD microphone,makes you enjoy a clear and loud sound.Play/pause (also answer calls), Vol +/-, and next/previous track buttons, super easy operation, good workmanship. Compatible with iPhone 6s 6 6 Plus5S 5C 5 4S 4, iPods,Samsung Galaxy Note 3, Note 2, S5 S4, S3, S2 Most Android Smart Phones and other Bluetooth-enabled tablets,Support call answering.The two sides of the headset(left and right) both have one battery,you need both charge them before using.