Features: brand new and high quality Although wearing glass,you also can wear this headset. Any distortion without deformation, safe and comfortable. Bluetooth-compatible provides instant pairing and stable transmission without interruptions. Enjoy music, you without shutting out the world around you,more safety. It can fast and stable transmission without tangling. With the superior lightweight design,adjustable earbud perfectly fits for your ears, this bluetooth-compatible earpiece would not cause any burden to your ears. Specifications: Material:ABS Color:Blue,Silver(Optional) Bluetooth-compatible Version: V 4.1 Operating range: up to 33 feet (10 meters accessibility) Headset battery capacity: 180mAH for Play time: About 8 hours Calling Time:About 9 hours Standby:About:180 hours IPX5 Waterproof Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xBluetooth-compatible Earphone