Bluetooth Headphone, XS2 Wireless Sport Bluetooth 4.1 Sweat Proof, Noise Cancelling Earbud With Mic for Handsfree Calling for iPhone 6 Plus to 4S, Samsung Galaxy, Note, and Bluetooth Compatible COMFORTABLE: Light-Weight and Sweat Proof. As light as 18 grams. Never a burden to the ears. Rubber coating is comfortable to touch and wear, soft and skin friendly. With ergonomical design, ear hooks and rotatable earbuds makes the headsets fit your ear perfectly.Along with their rubber coating, these headsets hardly cause foreign body sensation when wearing. Friction been reduced to minimum on condition that the earbuds can fit in ears firmly when doing sports. EASY CHARGE: Built-in rechargeable Lithium-poly battery. Can last up to 5 hours while listening to music or talking on the phone. This powerful rechargeable battery has up to 180 hours of standby time. CALL FUNCTIONS: Built-in Microphone. Picking up and hanging up phone calls. In standby mode, double-click the MF button, can redial your last call. HD SOUND: Perfectly transfer HD music. Super sound performance. Built-in microphone. Detailed voice instructions to guide you for easy using. COMPATIBILITY: Comes with the recently updated Bluetooth 4.1 with enhancements in coexistence, better high quality connections, and improved faster data transfer. Bluetooth 4.1 allows devices to reconnect automatically when they are in proximity of one another. These wireless headphones can connect with Bluetooth enabled music players & A2DP enabled devices such as iPad, iPhone, iPod touch, Android Smart Phones, tablets, etc. Fit for iPhone 6 6Plus 5S 5C 5 4S, Galaxy Note 3 2 S4 S3 and GoogleBlackberryLG other Smartphones