OPPO Enco Air3 Wireless Bluetooth 5.3 Semi-in-ear Call Noise Reduction Music Sports Earphones(Purple)

Features:
1. Touch operation, easy and convenient
2. Independent spatial sound effect, surround sound
3. Bluetooth 5.3, fast and stable connection
4.IP54 dustproof and waterproof
5. Support simultaneous connection of dual devices
6. Magnetic storage, automatic adsorption
7. Small and comfortable, fit the auricle
8. DNN call noise reduction, intelligent filtering of environmental noise during calls

Product parameters:
1. Bluetooth version: 5.3
2. Effective distance: 10 meters
3. Sound unit: 13.4mm moving coil unit
4. Speaker sensitivity: 122-128dB@1kHz
5. Frequency response range: 20Hz-20kHz
6. Microphone sensitivity: -38dBV/Pa
7. Noise reduction depth: 49dB
8. Bluetooth codec: music: AAC/SBC, call: CVSD/MSBC
9. Battery capacity: 27mAh (headphone) / 300mAh (charging box)
10. Charging time: 1.2h (earphone)/2h (earphone + charging box)
11. Interface: Type-C/USB-C
12. Waterproof grade: IP54
13. Net weight: complete set: about 37.6 grams