The above image is for reference only. Please refer to the actual product for all criteria.
Model: ETI81 Charging case model: ETI82
Driver: 8 mm dynamic driver Driver sensitivity: 100.6 dB @ 1 kHz Frequency response range: 20 Hz - 20 kHz
Bluetooth codec: AAC/SBC Bluetooth version: 5.2 Bluetooth range: 10 m
Battery type: Rechargeable Li-ion Cell Battery capacity: 40 mAh (Earbuds) / 400 mAh (Charging Case) Music play time (50% volume): 6 h (single charge)/ 24 h (with Charging Case) Communication time (50% volume): 4 h (single charge)/ 15 h (with Charging Case)
Charging time: 120 min (Earbuds)/ 150 min (Earbuds +Charging Case)Charging port: USB Type-C *The above specifications were obtained based on tests performed in OPPO laboratories. Charging times were tested in OPPO laboratories at a temperature of 25°C using an OPPO standard charger. The actual results may differ slightly depending on environmental factors and the charger used.
Water and dust resistance
Dust & water resistance (Earbuds): IP54
Weight: 4.0 g/Earbud，37.0 g/Charging Case, 45.0 g/HeadphonesSize (Charging Case): 67.0 mm*40.4 mm*27.2 mmSize (Earbud): 22.2 mm*19.6 mm*22.7 mmSize (Package): 120 mm*120 mm*36 mm