Music in Earbuds Bluetooth Earbuds Wireless Charging Case Stereo 3D Description: Invisible wireless in-ear design allows you to enjoy music without any cables, making it convenient and easy to pop out when doing na sports, running, jogging, exercising na the gym, watching TV, driving, etc. This double-eared, waterproof headset uses Bluetooth 5.1 technology, provides clear information and the best stereo experience, supports double-eared stereo calls. Standby power consumption is about 0,3 mA, which provides significant advancements in battery life. Dust and water IPX4, split design, wearing single and double ears. Intelligent compatibility: supports all mobile phones, laptops, singing, QQ music, movies, all mobile phones. Specification: Item Type: Truly Wireless Bluetooth Headset BT version: .1 Transmission distance: 10 m/33 feet Charging Interface: Micro BT: HFP, A2DP, HSP, AVCRP Frequency Range: 20-20000 Hz Sensitivity: 98dB Impedance: 16Ω Charging box capacity: 3,7V 300mAh Time: about 4 hours (depending on music volume) Charging time: about 1,5 hours for headphones, 2 hours for charger Material: ABS Size: Charging box: 6,2 x 2,8 cm / 2,4 x 1,1 inch Headphones: 2,7 x 1,5 cm / 1,06 x 0,5 inches Size Chart: 14,1 x 7,8 x 3,1 cm / 5,55 x 3,07 x 1,22 inches The package includes: 1 set of wireless headphones ( ) with charging case