TWS Bluetooth 5.1/5.3 Earphone Wireless Headphones Stereo Headset Bass Music Earbuds Waterproof Sports Noise HD Mic for Smart Phone

JTKE. Product Name: Wireless Bluetooth Headset. Operation mode: button. Working distance: within 10-15 meters. Bluetooth chip: 5.1. Charging interface: micro USB. Waterproof grade: IPX4. Frequency: 20hz-20khz. Headphone lithium battery: 40mah. Lithium battery in charging box: 260mah. Charging voltage: 5v. Working time: 2.5-3h. Bluetooth is compatible with 99 of devices and suitable for devices with Bluetooth function. Feature: Fine Material: The earbud is designed and made with fine ABS, which is firm, sturdy and not easy to break. Stable: The earphone is equipped with bluetooth-compatible 5.0 chips, so it can provide you with better connection. Waterproof: The earbud is designed to be waterproof, so there is no need for us to worry about rain or sweat. Portable: The earbud is designed to be small and lightweight, which is easy for us to put into our bags to carry. In-ear: The earbuds id specially designed to be in-ear type, so it will not easily fall off when doing sports. Specificati