明友起重
MingYou Crane HandlingOver-ear active noise cancelling headset * Noise cancellation: Up to 22-25dB at 1KHz Bluetooth Version:V5.0 Long working time: 66hours (ANC),26hours (Bluetooth), 18hours (Bluetooth+ANC) Operating distance:≥10m Working voltage: 3.7v Battery capacity: 400mAh Charging time: 2Hours (approx.) Unit diameter: 40mm Impedance: 32 ohms Frequency response: 20-20khz Sensitivity: 100+/-3dB at 1KHz Charge Port Type: Type-C Plastic/Metals:ABS/SUS301