Brand: OPPO
Product Model: ETE51
Sound unit: 12.4mm
Speaker diaphragm material: TPE + PU + bamboo fiber
Speaker sensitivity: 107dB@1kHz
Frequency response range: 20Hz-40kHz
Microphone sensitivity: -38dBV / Pa
Call noise reduction: dual microphone + AI call noise reduction
Bluetooth codec: LDAC/LC3/AAC/SBC
Bluetooth version: Bluetooth 5.3
Bluetooth effective distance: 10M
Charging port: Type-c

Packing list：
Earphone*1
Charging cable *1