AI Environmental Noise Cancellation (ENC): Clear calls even in noisy environmentsPowerful 10 mm Bass Drivers: Deep bass with HD stereo soundUp to 22 Hours Playtime: 5.5–6 hours on earbuds + extra charges with caseBluetooth 5.4: Faster, stable, and energy-efficient connectionLightweight & Ergonomic: Comfortable fit for long wearTouch Controls: Manage calls, music, and voice assistant with a tapIPX4 Water Resistance: Sweat and splash proof for everyday useCustomizable via TECNO Welife App: Sound modes and pop-up pairing BD04 (Buds 4 Air Bluetooth Version: 5.4Communication Range: ≥10 mBattery Capacity: 35 mAh (each earbud), 320 mAh (charging case)Playback Time: ~5.5–6 hours (single charge) / ~22 hours totalCharging Interface: USB-CWater Resistance: IPX4Weight: ~29 g (total with case)SKU: TE339EA2BUD4AIRGH (sample format – can be customized per your store code)