OPPO Enco W51 Product Parameters

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1. Basic Information

ModelETI21
Charging Case modelETI22
Weight7.9g/(Earbuds)
47.6g/(Charging Case)
55.5g/(Entire device)
ColorFloral White/Starry Black/Aqua Blue
Charging box size56.27mm*56.42mm*24.40mm

2. Driver & Speaker & Microphone

Driver7mm dynamic driver
Speaker diaphragm materialDual TPU graphene composite diaphragm speaker
Speaker sensitivity103 dB @ 1kHz
Frequency response range20 Hz- 20 kHz
Speaker rated impedance32 Ohm
Rated power3 mW
Microphone typeOmnidirectional MEMS microphone
Microphone sensitivity-38 dBV/Pa

3. Bluetooth

Bluetooth codecAAC/SBC
Bluetooth version5
Bluetooth range10 m

4. Battery

Battery typeRechargeable Lithium-ion battery
Battery capacity25 mAh (Earbuds)
480 mAh (Charging case)

5. Endurance

Music play time (50% volume) ANC on:3.5 h(single charge)/ 20h(with charging case)
 ANC off:4h (single charge)/24h(with charging case)
Communication time ANC on:2.5 h(single charge)/15h(with charging case)
 ANC off:2.5h (single charge)/16h(with charging case)
Continuous standby time ANC off:Earbuds 25 h,Earbuds +Charging case 150h
 ANC on:Earbuds 5 h,Earbuds +Charging case 30h

6. Charging

Wired Charging time80 min(Earbuds)/80 min(Earbuds+Charging case)
Wireless charging time150 min(Earbuds)/150 min( Earbuds +Charging Case)
Input (Charging Case)5V----2A
Output(Charging Case)5V----0.15A
Charging PortUSB Type-C

7. Others

Water resistance levelIP54
Operating temperature range2~35 degrees Celsius
Storage temperature range-10~50 degrees Celsius
Charging temperature range0~45 degrees Celsius

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