OPPO Enco W31 True Wireless Headphones User Guide
Overview
The box contains the OPPO Enco W31 True Wireless Headphones, the USB-C cable, ear tips in three sizes (the Size M ear tips are mounted on the earphones), the Quick Start Guide, and the warranty card.
Bluetooth Pairing
- When using for the first time, open the Charging Case and the headphones will start pairing automatically.
- Turn on Bluetooth on your device:
- Normal Pairing: On the Bluetooth interface, search and select “OPPO Enco W31”.
- Quick Pairing: Hold near unlocked OPPO phone, then follow the onscreen instructions.
Not oil models support quick pairing. For details, please visit www.oppo.com.
Automatic Connection
After the pairing record has been recorded, with the headphones in the Charging Case and lid open, then the headphones will connect to your device automatically.
Pairing with New Devices
With the headphones in the Charging Case and lid open, press and hold the Function Button untill the Indicator blinks. The headphones then are available for pairing with a new device.
Wearing Detection
When you listen to music while wearing both units of the headphones, the music playback will be paused if either of them is removed. When the removed unit is worn again, the music playback will be resumed.
Touch Control
During media playback, double tap on the right headphone to play the next track, double tap on the left headphone to switch the audio effects. During a call, double tap to answer / end the call.
Audio Effects
Switching audio effects: double tap on the left headphone.
- Balance mode: excellent audio balanced for every frequency.
- Bass mode: enhanced, rich and smooth bass.
Charging
Check charge status
- The Indicator shows charge status of the headphones when they are in Charging Case. Otherwise, the Indicator shows charge status of the Charging Case.
- The indicator color indicates the battery level, red indicates low battery, yellow indicates medium power, and green indicates high battery.
- When the remaining battery charge of the Charging Case is low (the indicator lights red), the Charge Case can only complete one full charge of the headphones at most. Please charge the Charging Case in time.
Charge the headphones The headphones charge while in the Charging Case. If the device is left to lie idle for long periods, charge it every two months; otherwise, the headphones may not work properly.
Charge the Charging Case Use the USB-C Cable to charge the Charging Case. The Indicator will light up when charging.
Resetting
- With the headphones in the Charging Case and lid open.
- Press and hold the Function Button for 15s until the Indicator flashes red three times. Then the headphones have been restored to factory settings.
Specification
| Model | ETI11 |
| Driver | 7mm dynamic driver |
| Frequency response range | 20 Hz – 20 kHz |
| Microphone sensitivity | -38 dBV/Pa |
| Supported audio formats | AAC/SBC |
| Bluetooth version | 5.0 |
| Wireless range | 10 M |
| Battery type | Rechargeable Lithium-ion battery |
| Battery capacity | 25 mAh (Headphones) 350 mAh (Charging Case) |
| Music play time (5096 volume) | 3.5 h (single charge) 15 h (with Charging Case) |
| Charging time | 80 min (Headphones) 150 min (Headphones + Charging Case) |
| Charging Cose model | ETI12 |
| Input (Charging Case) | 5 V = 1A |
Charging time was measured using a standard OPPO charger at 25°C, the normal lab temperature. The actual charging time away vary subject to the charging environmental 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.
