Specifications: Waterproof Headphones With Power Bank Functionality Charge your phone from the case of these headphones Bluetooth 5.0 connectivity  Call Digital Display  Intelligent Noise Reduction  IPX7 Waterproof  Bluetooth Version: 5.0 Working Voltage: 3.1V - 4.2V Charging Voltage: 5V-500MA Speaker: φ8mm Battery Capacity of Earbuds: 50mAh Battery Capacity of Charging Box: 3600mAh Transmission Distance: 10m Talk Time: 6 hours Play Time: 4 hours Charging Time of Earbuds: 30-45 min Charging Time of Charging Box: 5-6 hours Feature: Real wireless Bluetooth 5.0 provides powerful Bluetooth signal and anti-interference ability. The headset could automatically power on and match the phone after picked up, eliminating the troublesome operation of manual startup and pairing. Intelligent button control: You can do all operations with one single touch. CVC8.0 call noise reduction: Binaural call, supporting for call and providing high-definition call experience with adaptive noise reduction technology. Ergonomic design: Fit the auricle and no pain after long-time wearing, and it does not fall during the movement. The earphone could get charged from the 3600mAh charging case several times. And the large-capacity charging box can charge your phone. IPX7 Waterproof design allows not to be damaged by water entering the inside of the earphone and you can enjoy the music without any fear of rain and sweat. Low power consumption, long battery life, long standby time is available after fully charged. The headphones could be used to answer/reject calling, skip/play/pause songs, and activate voice assistants, such as Siri.  Package Includes: 2 x Earbuds 1 x Charging Box 1 x Charging Cable 1 x User Manual