Wireless headset with noise isolation feature - black

Features: - Bluetooth: Version 5.1 - Driver size: 40 mm - Sensitivity: 96 ± 3 decibels - Frequency response: 20 Hz ~ 20 kHz - Distance: Up to 10 meters - Noise cancellation frequency range: 40 Hz ~ 600 Hz - Noise cancellation center frequency: 100 Hz ~ 300 Hz - Battery capacity: 400 mAh - Charging port: Type-C - Charging time: 1.5 to 2 hours - Working time: Up to 15 hours (12 hours with noise cancellation on) - Charging cable length: 30 cm