BH220 A4tech Fstyler Bluetooth v5.3 Wireless Headset Black

SPECIFICATIONS
CONNECTION
Bluetooth Version: v5.3
Operating Range: Up to 10m (32 feet)
Built-in Battery: 400mAh Lithium Battery
Playback Time: 40H
HEADPHONE
Speaker Unit: 40mm Hybrid Diaphragm
Frequency: 20Hz - 20KHz
lmpedance: 32ohm
Sensitivity: 100dB
Size: 170(L) x 80(W) x 190(H) mm
Weight: 204 g
MICROPHONE
Mic. Type: ENC Omni-Directional
Frequency: 100Hz - 10KHz
Sensitivity: -42dB
CABLE
USB Type-C
Charging Cable: 120 cm