Features :
Bluetooth 5.0 Headphone connection up to 33ft (10m);
Up to 15 hours with the built-in 300mAh battery;
*Foldable and adjustable
Specification :
Driver Diameter: 40mm
Frequency Response: 20-20KHz
Impedance: 32ohms
Sensitivity: 105+/-3dB
Mic sensitivity:-42±3dB
Working time:15H
Standby time: about 100H
Charge time: 3H
Effective range:10M
Battery capacity: 300mAH 3.8-4.2V
Directivity: Omnidirectional
