Features: 1200mAh multifunctional charging case(as power bank for phone) With battery consumption displayforearbuds and charging case Smart touch control, compact and light weightboth well fit ear canal without burden Life class waterproof, well withstanding sweat and rain Ergonomic design and feather-light weight are both precisely designed and measured to make your ears fully comfortable Advanced BT5.1technologybrings better stability and compatibilitywith low latency and low power consumption Features flashlight and UV light functions