Wireless TWS Earphone IPX5 Waterproof Design - In-ear design, - comfortable to wear, not easy to fall off Bluetooth chip 4. 2, signal stability, automatic matching, strong compatibility - Portable charging box, comfortable to master, no shortage of electricity during travel - Double-ear separated design makes single and double ears can be switched at will - Ipx5 waterproof design makes music not afraid of the sweaty sports