• Model:? ETI41
• Charging Case Model:?ETI42
• Driver:?8 mm dynamic driver
• Driver sensitivity:?99 dB @ 1kHz
• Frequency response range:?20 Hz- 20 kHz
• Microphone sensitivity:?-38 dBV/Pa
• Bluetooth? version:?5.0
• Bluetooth range:?10 m
• Battery type: Rechargeable Lithium-ion battery
• Battery capacity:?40 mAh (Headset),?400 mAh (Charging Case)

Music playtime (50% volume):??5 h (single charge), 20 h (with charging case)

• Charging time:??120 min(Headset),?120 min (Headset+Charging Case)
• Dust &?Water Resistance?(Headset):?IP55
• Weight (approx.)
  • 4.4g/Headset
  • 35.5g/Charging
  • Case, 44.3g/Headphones
• Charging Port:?USB Type-C