Rich sapphire blue in a sleek aluminum body. The AiroPro skips the button and the bright lights. A light vibration tells you it's working. Airo pods snap on magnetically for fast strain swaps, and the device and oil work as one closed-loop system. The ergonomic shape sits easily between your fingers. Recharge with a USB-C cable. Keep it in a cool spot rather than a hot car to look after the battery.