Universal Compatibility.RAGU Bluetooth headphones can work seamlessly with your iPad， iPhone， iPod Touch， Android Smartphone's， tablets， Bluetooth-enabled music players and any device with bluetooth capable connection.Never fall off from your ear.Comfortable and safe design fits perfectly to your ear; the cable smartly stays out of your way when running， jogging or exercising.Safety and comfortable designed， feels good to your ear and stays on its position even on excessive movement.Enjoy clearer music， feels like in Music Hall.Supports CVC Noise Cancellation 6.0 technology that will reduce unwanted noises， which makes the microphone adapt clearer sound. Make a high quality hand-free call even you are in the center of crowded and noisy place such as streets or in the shopping malls.Specification:Item：Sport Bluetooth headset G2ASupports standard Bluetooth:V4.1Charging capacity: power adapter output(DC5V 150mA)Battery: High-capability rechargeable lithium polymer batteryBluetooth Operation: Class 2Talk time: Up to 8 hoursPlaying time: Up to 8 hours.Stand by time: Up to 180 hoursPackage:1x RAGU sport Bluetooth stereo headphones1x Charging Cable3x Ear buds; large， medium， and small3 x Ear stabilizers; large， medium， and small