Specifications - Oppo Enco W31 Manual

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Specifications
Model
Driver
Frequency response range
Microphone sensitivity
Supported audio formats
Bluetooth version
Wireless range
Battery type
Battery capacity
Music play time (50% volume)
Charging time
Charging Case model
Input (Charging Case)
※ Charging time was measured using a standard OPPO charger at 25°C, the normal lab
temperature. The actual charging time may vary subject to the charging environment and the
specific charger being used.
※ Specifications are from lab data.
※ This Quick Start Guide is for reference only. The specific functions and appearance of the
headphones may be slightly different.
ETI11
7mm dynamic driver
20 Hz ~ 20 kHz
-38 dBV/Pa
AAC/SBC
5.0
10 m
Rechargeable Lithium-ion battery
25 mAh (Headphones)
350 mAh (Charging Case)
3.5 h (single charge)
15 h (with Charging Case)
80 min (Headphones)
150 min (Headphones + Charging Case)
ETI12
5 V ⎓ 1 A
4