OPPO ENCO W51 True Wireless Earphone ANC, 7mm Drivers

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  • 25 mAh(Earphone)/ 480 mAh(Charging case) battery
  • Binaural Low-Latency Bluetooth 5.0 Transmission: Bluetooth connection stability and ultra-low latency achieving a leading level in the industry.
  • Hybrid Active Noise Cancellation: In-Depth noise reduction for an impressive sound experience.
  • Single charge provide 24 hours Music Play back, 15-minutes charge provide 9 hours music playback/calls with ANC (active noise cancellation) On. Support Fast charging and wireless charging.
  • Wearing Detection: Automatically connects when the case is opened, and disconnects when you put the headphones back to the case. Music pauses when taken off, and continues to play when put on again.
  • IP54 Dust and Water Resistance: Earphones are professionally designed and are certified IP54 dustproof and waterproof.
  • In-ear ergonomic design, more exquisite wearing experence with improved, smaller design with 3.95g weight.

There is no latency differentiation between the main headphone and secondary headphone, and connection stability and Bluetooth latency reaches industry-leading levels. System-wide improvement to reduce latency: Optimize Bluetooth decoding to improve the transmission speed of audio signal. The headphones will automatically detect if you are wearing or not wearing them, and play or pause the music accordingly. The headphones will automatically connect to device when the charging case is open. They will automatically disconnect when the case is closed.

rom the manufacturer

Specs

Model ETI21
Product colors Floral White / Starry Blue
Model (charging case) ETI22
Driver 7mm dynamic driver
Driver sensitivity 103dB @1KHz
Frequency response range 20Hz ~ 20kHz
Microphone sensitivity -38 dBV/Pa
Bluetooth version BT 5.0
Wireless range 10 m
Battery type Rechargeable lithium-ion battery
Battery capacity 25 mAh (headphones) /
480 mAh (charging case)
Music play time (50% volume) ANC on: 3.5h (single charge) / 20h (with charging case)
ANC off:4h (single charge) / 24h (with charging case)
Wired Charging time 80min (with charging case)
Wireless charging time 2.5h (with charging case)
Charging port USB Type-C
Dust and water resistance (headphones) IP54
Weight (Entire device) 55.5g

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