Price: ¥3740 Used a few times. The original pad is used. (Cleaned) Includes replacement oil pads, cable, and instruction manual. [The following is quoted from the official website ↓] How to use: Drip 3-5 drops of 100% natural essential oil onto the built-in oil pad, and press the power button to start the fan. Regarding battery life: You can use it approximately 30 times with about 20 minutes of use per session. (Approximate)