Earphone
Model: ETE31
Charging case model: ETE32
Audio quality
Driver: φ13.4mm Dynamic Unit
Driver sensitivity: 125±3dB @1KHz
Frequency response range: 20~20KHz
Microphone sensitivity: -38dBV/Pa
Bluetooth
Bluetooth codec: AAC/SBC (music), CVSD/MSBC (conversation)
Bluetooth version: BT5.3
Bluetooth range: 10m
Battery Life
Battery type: Rechargeable Lithium-ion Battery
Battery capacity: 27mAh (earbuds) / 300mAh (charging case)
Communication time (50% volume): 6h (single charge) / 25h (with charging case)
Charging
Charging time*: 1.2H (earbuds) / 2H (earbuds + charging case)
Charging input (charging case): 5V ⎓ 1A
Charging output (charging case to earbuds): 5V ⎓ 400mA
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
Water resistance (earbuds): IP54
Size
Weight (earbuds): 3.75g±0.1g
Weight (product): 37.4g±0.2g
Size (earbuds): 33.1mm*18.45mm*17.10mm
Size (package): 56.55mm*51.6mm*26mm
