Earphone

Type：In-ear True WirelessModel (earphones)：ETI51Color：Black/White/BlueModel (charging case)：ETI52

Audio quality

Driver：φ11mm dynamic driver + φ6mm balanced membrane driverSpeaker sensitivity：104dB@1KhzFrequency response range：20Hz ~ 20kHzAudio codec：Audio codec LHDC / AAC / SBC

Noise cancellation

Noise control modes：Max Noise Cancellation /Noise Cancellation/Transparency/Noise Cancellation Off

Bluetooth®

Binaural Low-Latency Bluetooth® Transmission：SupportedBluetooth® version：Bluetooth® 5.2Effective Bluetooth® range：10m

Battery Life

Battery type：Rechargeable lithium-ion batteryBattery capacity：44 mAh (earphones)/535 mAh (charging case)Music play time (50% volume)*：Strong noise cancellation mode: 4 h (single charge)/20 h (with charging case)，Noise cancellation off: 5.5 h (single charge)/25 h (with charging case)

Charging

Cable Charge Time*：80min（earphones）丨110min（charging case）Charging port：USB Type-CWireless charger：Qi wireless charging supported.

Size

Weight (each ear)：4.8g（±0.2g）Weight (charging case)：42.5（±0.5g）Weight (entire device)：52.5（±1g）Charging case size (length * width * thickness)：6.63*4.9*2.17cm

Water and dust resistance

Water and dust resistance – Earphone：IP54