OPPO | Enco W31 Wireless Earphone

Driver: 7mm dynamic driver Driver sensitivity : 95 dB @ 1kHZ Frequency response range : 20Hz ~ 20kHz Microphone sensitivity : -38 dBV/Pa Bluetooth version : BT 5.0 Wireless range : 10m Battery type : rechargeable lithium-ion battery Battery capacity : 25mAh (headphones) & 350mAh (charging case) Music play time (50% volume) : 3.5h (single charge) & 15h (with charging case) Charging time* : 2.5h (with charging case) Charging port : USB Type-C Water resistance (headphones) : IPX4 Weight (Entire device) : 50g