B1 TWS Bluetooth Earphones 5.0 Sports Sweatproof Hanging Ear with LED Digital Wireless Earphones Private Model

Bluetooth version: V5+EDR

Receiving distance: 10m

Battery: 950mAh lithium battery

Bluetooth operating frequency: 2 402GFz-2.  480GHz

Audio signal-to-noise ratio: 100dB

Charging voltage: 5V-1A