Buds Air 4 TWS Color: Black & White
Bluetooth version ~ 5.4 — gives stable, efficient connection
Battery life: ~ 22 hours total with charging case included
Earbud battery: about 35 mAh each
Charging case battery: about 320 mAh
Water / sweat resistance: IPX4
Microphone: AI‑ENC / Ambient Noise Cancellation for clearer calls
Controls: touch controls for music/play/calls
Transmission / connection range: ~ 10 meters
Dimensions & weight: very lightweight earbuds (~3–4 g each), compact case