OPPO Enco W31 True Wireless Earphones Black - Binaural Low-Latency Bluetooth® transmission, Bass Mode, Dual Microphone, IP54 Dust and water resistance

OPPO Enco W31 True Wireless Earphones Black Kay Features: Fast, Stable & Smooth Connection Bass & Balance Mode Dual TPU Composite Grapheme Diaphragm AAC Audio format supported Intelligent Touch Controls IP54 Dust & Water Resitance Model: ETI11 Charging case model: ETI12 Driver: 7mm dynamic driver Driver sensitivity: 95dB @ 1kHZ Speaker impedance: 32Ω Frequency response range: 20Hz - 20KHz Microphone sensitivity: -38dBV / Pa Bluetooth version: Bluetooth 5.0 Audio formats: ACC / SBC Wireless range: 10m Battery type: Rechargeable Lithium-ion battery Batter capacity: 25mAh (earphone) / 350mAh (case) Music play time: 3.5h (single charge) / 15h (with case) Call duration: 2.5h (single charge) / 12h (with case) Charging time: 80min (earphone) / 150min (case) Input (charging case): 5V 1A Dust & water resistance: IP54 (earphones) Colour: Black Weight: 4g (single earphone) / 42g (case) Warranty: 12 months manufacturer's warranty