realme wireless headphones

USB Charging: DC 5V
Distance: 10meters
Frequency response: 50Hz - 20KHz
Output power: 35mW
Charging Time: 1 hours
Sensitive: 90dB / mW
Impedance value: 32 ohms
Duration: 4 hours
Renewal Time: 40 hours
Battery Capacity: 150mAh
Card range: 128M-32GB
Weight: 250g