OPPO | Enco X Wireless Earphone

Model (Earphones) : ETI51 Sound unit : 11mm dynamic driver + 6mm balanced membrane dual drivers Speaker sensitivity : 104dB@1KHz Frequency response range : 20Hz ~ 20kHz Microphone sensitivity : -38 dBV/Pa Bluetooth version : BT 5.2 Wireless range : 10m Battery type : Rechargeable lithium-ion batteries Battery capacity : 44mAh (earphones) / 535mAh (charging case) Wireless charging : Yes Wired charging time* : 80min (earphones), 110min (charging case) Charging port : Type-C Dust and water resistance level (earphones) : IP54 Net weight: 4.8g (52.5g with box) Charging case size (LxWxD) : 66.3×49×21.7 mm