Winsbotech Sport Bluetooth Headphone, Bluetooth 4.1 Wireless Stereo Sport Headphones Running Gym Exercise Sweatproof Earphones with Built-in Mic for iPhone, Samsung, iOS and Android Smartphones (blue) LAEST BLUETOOTH TECHNOLOGY --- Bluetooth 4.1 technology provides high-fidelity stereo music and clear speech with up to 5 hours of continuous talking / music time; easy and fast pairing with all the bluetooth enable smartphones, tablets and other bluetooth enabled music devices. INNOVATION DESIGN --- With soft smooth silicone gel surface, this Bluetooth headphone is designed to naturally fit the contours of your ear. Different sizes of earbud tips are provided to guarantee constantly comfortable feeling. MULTI-FUNCTION --- This Bluetooth earphone allows you realize remote control to your devices, such as, volume up/volume down, previous track/next track, answer/end calls. Build-in microphone makes your phone call hands free. UNIVERSAL COMPATIBILITY --- Ideal for iPad, iPhone, iPod Touch, Android Smartphones, tablets, Bluetooth-enabled music players and any devices with Bluetooth connection. EXCELLENT BATTERY PERFORMANCE: The polymer 70mAh battery support 5 hours of playing/talking time and 100 hours of stand-by operation with a single charge, so you have less time charging and more time playing.