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Oppo has launched the Enco Air4s true wireless earbuds in China. It’s an affordable option with active noise cancellation of up to 32dB, dual-microphone call noise reduction, and up to 43 hours of total battery life.
The Oppo Enco Air4s comes with an IP55 rating for dust and water resistance. Oppo says the earbuds have undergone several durability tests, including exposure to temperatures as high as 55°C, more than 20,000 opening and closing cycles for the charging case, and drop tests from 1.5 meters for the case and 1.8 meters for the earbuds.
Battery life and noise cancellation
The Enco Air4s delivers up to 43 hours of total playback with the charging case. Each earbud provides up to 12 hours of listening with ANC turned off, dropping to 8 hours when active noise cancellation or transparency mode is enabled.
Oppo says the battery has TÜV Rheinland certification and maintains consistent performance after 1,000 charge cycles. Likewise, the official claim is that a 10-minute charge provides up to four hours of listening time.
The earbuds support up to 32dB of active noise cancellation, which Oppo says helps reduce everyday sounds such as conversations, traffic, and background music. Transparency mode is also available when you need to hear your surroundings without removing the earbuds.
For phone calls, the Enco Air4s uses two microphones alongside AI algorithms to reduce background noise and pick up your voice. Oppo says the setup helps keep your voice clear even when you’re speaking in a noisy environment.
The company also tested the earbuds and charging case for durability. Alongside the temperature and hinge tests, the charging case survived drops from 1.5 meters, while the earbuds were tested against drops from 1.8 meters.
Price and availability
The Oppo Enco Air4s is priced at 179 yuan (around $26) for its initial sale in China. This makes it cheaper than the Oppo Enco Air 5, which costs 199 yuan. There’s also the option of the Oppo Enco Air 4 Pro, which supports up to 49dB of ANC and the LHDC 5.0 audio codec.
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