TWS Bluetooth V5.1 Headphones LED Display Wireless Earphones With Microphone 9D Stereo Sports Waterproof Earbuds Headsets. Bluetooth version: V5.1

Noise reduction version: CVC8.0

Working distance: connect within 10 meters

Single ear capacity: 50 mA

Continuous dialogue: 4-5 hours

Continuous music time: 4-5 hours (up to 70%)

Automatic boot: support

Automatic pairing: support