Oppo has launched the Enco Air4s true wireless earbuds in China, offering active noise cancellation, dual-microphone call noise reduction, and up to 43 hours of total battery life.
The earbuds are priced at around $26 during their initial sale in China.
Up to 32dB Active Noise Cancellation
The Oppo Enco Air4s support active noise cancellation of up to 32dB, which the company says can reduce everyday sounds including conversations, traffic, and background music.
A transparency mode is also available for users who want to hear their surroundings without removing the earbuds.
For calls, the Enco Air4s use two microphones combined with AI algorithms to reduce surrounding noise and improve voice clarity in noisy environments.
Up to 43 Hours of Battery Life
The Enco Air4s provide up to 12 hours of playback per charge with ANC turned off.
Battery life drops to around eight hours when either active noise cancellation or transparency mode is enabled.
With the charging case, total playback reaches up to 43 hours.
Oppo says a 10-minute charge provides up to four hours of listening time. The battery has also received TÜV Rheinland certification and is claimed to maintain consistent performance after 1,000 charging cycles.
IP55 Rating and Durability Testing
The earbuds carry an IP55 rating for dust and water resistance.
Oppo says it tested the Enco Air4s at temperatures reaching 55°C. The charging case was also subjected to more than 20,000 opening and closing cycles.
During drop testing, the charging case survived falls from 1.5 meters, while the earbuds were tested from 1.8 meters.
Price and Availability
The Oppo Enco Air4s are initially priced at around $26 in China.
That makes them cheaper than the Oppo Enco Air 5, which costs $29.
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