Hybrid Active Noise Cancellation Qi Wireless Charging Binaural Low-Latency Bluetooth® Transmission Triple-Mic Noise Reduction during Calls IP54 Dust and Water Resistance 24 Hours of Music Playback
Model (headphones): ETI21 Product colors: Floral White Model (charging case): ETI22 Driver: 7mm dynamic driver Driver sensitivity: 103dB @1KHz Frequency response range: 20Hz ~ 20kHz Microphone sensitivity: -38 dBV/Pa Bluetooth version: BT 5.0 Wireless range: 10 m Battery type: Rechargeable lithium-ion battery Battery capacity: 25 mAh (headphones) / 480 mAh (charging case) Music playtime (50% volume): ANC on: 3.5h (single charge) / 20h (with charging case), ANC off:4h (single charge) / 24h (with charging case) Wired Charging time: 80min (with charging case) Wireless charging time: 2.5h (with charging case) Charging port: USB Type-C Dust and water resistance (headphones): IP54 Weight (Entire device): 55.5g