DimensionsEarbuds dimensions (Length × Width × Height):approx 26.70 mm × 22.00 mm × 25.30 mmCharging case dimensions (Length × Width × Height):approx 59.70 mm × 51.95 mm × 27.35 mm*The actual size of the product may vary with the product configuration and manufacturing process.WeightEach earbuds:5.6 g ± 0.3 gCharging case:45.5 g ± 2 g*The actual weight of the product may vary with the product configuration and manufacturing process.BatteryBattery capacityEarbuds: 55 mAh (minimum value each)Charging case: 510 mAh (minimum value)Charging methodWired charging: USB-CWireless charging: up to about 2 WCharging timeAbout 40 mins for the earbuds (in the charging case)About 60 mins for the charging case without earbuds (wired)About 150 mins for the charging case without earbuds (wireless)*Data comes from Huawei lab tests. During testing, the ambient temperature is 25°C, for reference only.Battery lifeMusic playback: 8 hours after a full charge and 36 hours when used with the charging case.*The battery life and charging data come from Huawei lab tests. During the tests, audio in AAC format was played at 50% volume level . The default settings were used for other features. Actual results may vary depending on the volume, audio source, environmental interference, product features, and usage habits.ControlsTap on the Acoustic Ball, the C-bridge, or the Comfort Bean, for seamless control.Double-tap: Play/Pause audio, or answer/end a callTriple-tap: Play the next trackSensorVPU sensor/IMU sensor/Hall sensor/CAP sensorSplash, Water, and Dust ResistantEarbuds:IP54Charging case:not waterproof*IP54 dust- and water-resistance is only applicable to the earbuds themselves, not the charging case. This device is splash, dust, and water resistant in normal conditions. It was tested under controlled laboratory conditions and got an approved rating of IP54 under IEC standard 60529. Splash, dust, and water resistance are not permanent, and the performance may deteriorate due to daily wear-and-tear. Avoid charging the device in damp environments. Liquid damage is not covered under warranty.Audio Format(s)SBC, AAC and L2HC are supported*L2HC Requires Huawei phones running EMUI 13.0 or later