- Model: ETI81; Charging Case: ETI82
- Driver: 8 mm dynamic driver
- Frequency range: 20 Hz – 20 kHz
- Bluetooth version: 5.2; Bluetooth range: 10 m
- Battery: Rechargeable; Lithium-ion Cell
- Battery Capacity: 40 mAh (Earbuds) | 400 mAh (Charging Case)
- Music play time: 6 h (single charge) | 24 h (with charging case)
- Charging time: 120 min(Earbuds) | 150 min (Earbuds +Charging Case)
- Dust and water resistance (Earbuds): IP54
- Weight: 4.4g/Earbud，37.0g/Charging | Case, 45.0g/Headphones
- Charging port: USB Type-C
