Built-in 1100mAh lithium battery, with a maximum of 8.5 hours (lowest fan speed at level 1) and a minimum of 2.4 hours (highest fan speed at level 4).

Charging time is 2.5 to 3 hours.

There are a total of 5 modes that can be cycled through by pressing a button.

It is only compatible with Meta Quest 2; other models are not compatible.

It is compatible only with the Sonicgrace F2 replacement mask.

Yes, the mask uses memory foam, which is soft and comfortable for extended use.

While the wind does not blow directly into the eyes, if you feel dryness, you can try blinking or switching to low wind mode.

The fan has 5 wind modes; if the noise is too loud, you can try switching to low wind mode.

Yes, when used with our replacement mask, it can reduce facial heat.

Yes, when used with our replacement mask, it can enhance air circulation around the lenses, reducing lens fogging.

No, they charge separately.

Yes, there is enough space inside to accommodate prescription lenses.

If you plan to not use it for an extended period, please charge it fully and store it in a dry indoor environment, avoiding direct sunlight, and charge it at least once every six months.

Yes, the materials are easy to clean and maintain.