Brand New TWS Bluetooth Earbuds Headphone type: in-ear headphones Music time: about 150 hours (including rechargeable battery) Talk time: about 150 hours (including rechargeable battery) Frequency response: 20-20kmHz Charging capacity: 2000mAh wireless distance: about 10 meters Waterproof: life-grade waterproof Connection method: single / double free use Color: Black Features: music play / pause, phone answer noise reduction, power display, voice prompts wireless version: V5.0 Compatible devices: wireless devices for companies such as for Xiaomi, Samsung, Apple, Huawei, etc.