Enco W51 - Smartwatch OPPO - Free user manual and instructions

Product type	True wireless earbuds
Model	ETI21
Charging case model	ET122
Brand	OPPO
Bluetooth version	5.0
Wireless range	10 m
Driver	7mm dynamic driver
Frequency response	20 Hz – 20 kHz
Supported audio formats	AAC, SBC
Active noise cancellation	Yes
Battery capacity (earbuds)	25 mAh each
Battery capacity (case)	480 mAh
Battery life (with noise cancellation)	3.5 h (earbuds) / 20 h (with case)
Battery life (without noise cancellation)	4 h (earbuds) / 24 h (with case)
Charging time (earbuds)	80 min
Charging time (case)	80 min
Input voltage (case)	5 V, 2 A
Touch controls	Yes (customizable)
In-ear detection	Yes (auto pause)
Voice assistant	Yes (triple tap)
Factory reset	Yes (long press 15 s)
Water resistance (IP rating)	Not specified

Frequently Asked Questions - Enco W51 OPPO

How to pair the Oppo Enco W51 with a phone?

Open the charging case containing the earbuds. Pairing starts automatically. On your phone, enable Bluetooth and select OPPO Enco W51 from the list.

How to activate noise cancellation?

Double-tap on the left earbud to enable or disable active noise cancellation.

How to automatically pause music?

Remove one or both earbuds from your ears. Playback will pause thanks to in-ear detection. Put them back to resume.

How to charge the earbuds and case?

Place the earbuds in the case. The case recharges via the provided USB-C cable or wireless charging on a compatible pad.

What to do if only one earbud works?

Check that both earbuds are fully charged and properly placed in the case. Try resetting them by pressing the case button for 15 seconds until you see a red flashing light.

How to change the ear tips?

Carefully remove the used ear tip and snap on the new ear tip of the desired size (XS, S, M, L). Make sure it is firmly attached for a good fit and better sound isolation.

How to customize touch controls?

On a compatible OPPO phone, open the HeyMelody app or Bluetooth settings. You can modify actions for single, double, and triple taps.

What is the actual battery life of the earbuds?

With noise cancellation activated, battery life is approximately 3.5 hours per charge, up to 20 hours with case. Without noise cancellation, it reaches 4 hours per charge and 24 hours total.

How to reset the earbuds to factory settings?

Place the earbuds in the case, leave the lid open. Press and hold the function button for 15 seconds until the indicator flashes red three times.

Are the earbuds compatible with all smartphones?

Yes, they work with any Bluetooth device. However, some features like control customization require an OPPO phone or the HeyMelody app.

USER MANUAL Enco W51 OPPO

True Wireless Headphones

Quick start guide

NO.18 HaiBin Road, Wusha Village, Chong An Town, DongGuan City, Guangdong, China

Overview and Package Contents

XS

S

L

C

D

C

Quick Start Guide Safety Guide

This box contains a pair of OPPO Enco W51 True Wireless Headphones, 4 pairs of ear tips in different sizes (the size M ear tips come mounted on the earbuds), a USB-C charging cable, a quick start guide, and a safety guide.

Bluetooth Pairing

1. If you are setting up your OPPO Enco W51 True Wireless Headphones for the first time, open the charging case with your earbuds inside. The earbuds will automatically start pairing with your phone.

2. Turn on Bluetooth on your phone:

3. Regular pairing: Search for and select "OPPO Enco W51" on your Bluetooth screen to complete pairing.

4. Quick pairing: Hold the OPPO Enco W51 True Wireless Headphones near an OPPO phone that has Bluetooth turned on. A setup prompt will appear on your phone. Complete pairing according to the onscreen prompts.
   Only some OPPO phone models support quick pairing. For details, visit www.oppo.com.

Pairing with Other Devices

1. Open the charging case with your earbuds inside, and press and hold the Function button for 2 seconds until the indicator blinks white. The earbuds are now ready for pairing.
2. Complete pairing on the Bluetooth screen of your device.

Ear Tip Fit

An ear tip that fits just right can provide better noise cancellation and sound quality while offering greater comfort. Try to pick a pair of ear tips that make a good seal with your ear canals. Please note that your left ear and right ear may require different sized tips.

Tap Controls

• Play the next track: Double tap the right earbud.
• Turn on/off noise cancellation: Double tap the left earbud.
• Answer calls/Hang up: Double tap the right earbud.
• Wake Voice Assistant: Triple tap the left or right earbud.

× You can customize tap controls for the left and right earbuds on your OPPO phone. Tap control customization may not be supported on some OPPO phone models due to version compatibility issues. For details, visit www.op0p.com.

Voice Assistant may not be supported for some phone brands or models.

In Ear Detection

When listening to audio with OPPO Enco W51 True Wireless Headphones, removing either one of your earbuds will pause the audio. Reinsert it to resume playback.

Noise Cancellation

OPPO Enco W51 True Wireless Headphones detect ambient noise through the built-in microphones, and generate an equal-but-opposite signal through the speakers to reduce the ambient noise. Noise cancellation reduces unwanted noise and offers you a clearer and more immersive audio experience.

Notes:

The noise cancellation effects may not be pronounced in very quiet environments.
The noise cancellation feature works better for low frequency noise.
The noise cancellation feature reduces noise but does not completely cancel it out.

Restoring to Factory Settings

1. Place your earbuds into the charging case and leave the lid open.
2. Press and hold the Function button for 15 seconds. When the indicator blinks red three times, your earbuds have been restored to factory settings.

Charging

Charging status

• When your earbuds are inside the charging case, the indicator shows the battery level of the earbuds. When you remove your earbuds from the charging case, the indicator shows the battery level of the charging case.
• Different indicator colors are used to show the battery level. Specifically, red indicates low, yellow indicates medium, and green indicates full or sufficient.

Charging your earbuds

Place your earbuds into the charging case to start charging them.

Charging the charging case

• Wired charging: Use the USB-C charging cable included to charge the charging case.
• Wireless charging: Use a compatible wireless charging pad to charge the charging case. Make sure the front side of the charging case faces upward during wireless charging. A phone that supports reverse wireless charging can also be used.

Specifications

Model:ETI21
- Charging case model: ET122
- Driver: 7 mm dynamic driver
Frequency response range: 20Hz 20kHz
- Microphone sensitivity: -38 dBV/Pa
Bluetooth codec: AAC/SBC
- Bluetooth version: 5.0
- Bluetooth range: 10 m
- Battery type: Rechargeable lithium-ion battery
- Battery capacity: 25 mAh (Earbuds) / 480 mAh (Charging Case)
- Playtime (50% volume)*

With noise cancellation on: 3.5 hours (single charge); 20 hours with charging case

With noise cancellation off: 4 hours (single charge); 24 hours with charging case

• Charging time (wired charging)*: 80 minutes (earbuds) / 80 minutes (earbuds + charging case)
• Charging input (charging case): 5V = 2A

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CneunΦkaun

• MoDenzb: ET121
• MoDénb Φутлардялэрдкн: ETI22
  -ДраиВер:ДИнhamMuYeckmДраиВер7MM
  -ДианэонAUX:20Tg~20Kt
• UyBCTBNTeJIbHOCTb MmKpOfoHa: -38 D5B/IIa
• KoNEk Bluetooth: AAC/SBC
  Bercs Bluetoh: 5.0
• Duaq30H Bluetooth: 10 M
  Tun 6atapen: nepe3apjxmaa, nntnebo-nOHnha
• EMKoCTb 6aTapeu: 25 Mau (hayuHnKn) / 480 Mau (yTJrnp dIra3apdKn)
  -Пюдлжтельность BOCРОИЗБЕДЕНЯ (HA rрмкоctи 50%)*

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XS

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Kayinci3ik texhikcch

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Kyattabll Kanbkyattay

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CpeunphiKaunap

Moienb:ET121
- KyattTafbiKANTbH MoJeni:ETI22
ДраиВер: 7 MM ДИнамИкалык ДраиВер
- Xniiik cinnattamacbiHbH nana3oHb: 20 Tn neh 20 KT apalbf
MikpofoHHbHce3riWtiri: -38 dB/
- Bluetooth koideri: AAC/SBC
- Bluetooth Hycckacb: 5.0
- Bluetooth aocb:10 M
- Batapey Tpyi: kyattanatbH nHTn-nON 6atapey
- BaTapeHbIH cIbIMdbIbIfbI: 25 mA-caf (KyIaKaacpan) / 480 mA-caf (KyaTaTbIw Kan)
OHyAty yakblb (db6bc deHreinH 50%-bi) Wydbj xoio fynkucbs kocblbn typhaHa: 3,5 cafat (6ip kyattay uKli); kyattafbiu Kannen - 20 cafat Wydbj xoio fynkucbs eWIn typhaHa: 4 cafat (6ip kyattay uKli); kyattafbiu Kannen - 24 cafat
·KyaTay yaKbIbI (cbIM apKblb KyaTay): 80 MNHy (KyJaacnan) / 80 MNHy (KyJaacn + Kyattafbiw Kan)
Kipic kyat (kyattafblu Kan): 5 B = 2 A