Bluetooth Wireless In-Ear Stereo Earphones Digital Charging Box New Bluetooth Headset

Overview： Bluetooth 5.0, faster and more stable transmission, supports hands-free call. The charging box can charge earphones 4 times when it is fully charged. Very convenient for travel or going out. The power will be displayed on the charging box, you can see the power status at anytime. Intelligent compatibility: support all Bluetooth mobile phones, tablets, laptops, etc.. Specification： 1. Size: 10 * 8 * 3CM 2. The battery capacity of the battery compartment: 300mA 3. Battery protection board IC brand: transistor battery protection board 4. The battery capacity of the headset: 35mA 5. There is a battery in one ear or a battery in both ears: both ears with battery 6. How long can be used each time: 3 hours 7. How many times can the battery compartment charge once: 4 times 8. Bluetooth version: v5.0 + EDR 9. Double ear canal transmission or single ear canal transmission: dual channel 10. Whether built-in microphone: binaural double m