Bluetooth Headset Ear-Hook Earphone Stereo Noise Reduction HD Sound Bluetooth Headphones with Microphone(Black) Power display for IOS : No longer blindly guess, support for iOS power real-time display. Ear hook design : The innovation is ear-hook design, and the wearing method is to suspend it on the ear, wear , and can be worn on both sides. Slim and lightweight : Break the weight of the conventional Bluetooth headset, wear it without feeling anything, make your ears very easy. Specification: Material: ABS Color: White, Black, Red (optional) Bluetooth version: V4.2+EDR, compatible with V4.0, V3.0, V2.1, V1.1 Bluetooth chip: Lodda 1523 power: Class2 frequency: 2.4GHz distance: 15 meters more Battery capacity: 75 mAh Talking time: 6-8 hours Play time: 4-6 hours Standby time: 120 hours Support file formats: IOS, A2DP, AVRCP, HSP and HFP Product features: the product does not need to be in the ear, can play music and call clearly Size: Approx. 7.5 * 4 * 0.6 cm/ 3.0 * 1.6 * 0.2 in Weight: Approx. 9 g Package list: 1 * Earphone 1 * USB Cable 1 * Chinese and English Instructions