B2 Wireless Bluetooth 5.1 Foldable Noise Reduction Headset(Black) Fineblue Transmission distance: about 15m

Transmission distance: about 15m

Sensing distance: less than 5mm

wear resistance

Wireless charger x 1

Three groups of alarm settings

B2 Wireless Bluetooth 5.1 Foldable Noise Reduction Headset(Black) Fineblue Transmission distance: about 15mFeature: 1. Upgrade Version5. 1 Bluetooth, no delay, efficient and smooth continuous conneciotn; 2. Rotatable folding microphong, practiocal but not cumbersome; 3. Ultra long battery life design, charge once for a week 4. 40mm large moving coil unit, the original sound is close at hand. 5. Support both wireless and wired modes, to meet different usage scenarios. Description: 1. Bluetooth Version: V5. 1 2. Bluetooth Distance: 10m 3. Battery: 3. 7V