BOBOVR S3 Pro スーパー ストラップ - For Quest 3 & 3S

It's the flagship strap with the largest battery (B100) and a built-in cooling fan — best for long or active sessions where you want the most runtime and airflow.

The B100 is BOBOVR's second-generation battery platform — larger capacity and power than the B2, with more expansion options. The B100 and B2 use different interfaces and are not interchangeable.

Up to about 3–4 hours, depending on the app. Light users need just one; for 5+ hour sessions, add a second B100 or a BD3 charging dock.

The halo design shifts weight to ease facial pressure; total weight is 547 g including the battery.

For best results, charge the B100 on its own with a good-quality 5V/3A charger and cable, and avoid splitters or very long cables. If you charge it while it is on the strap, it charges the battery first up to about 80%, then charges the headset.

For safety, the Quest limits on-head charging to about 80%; the battery keeps powering the headset the whole time.

Click the wheel once to turn the fan on, rotate it to set the speed from 1 to 100, and click again to turn it off. Long-press to power off the strap, and click to wake it. The fan turns off automatically after 2 hours with no input.

The fan is tuned to run quietly; above about 50% speed there is slight wind noise.

Three beeps means the battery is low (around 15% and 10%). One beep means the fan was toggled — turned on, off, to maximum, or to minimum.

The battery's indicator only lights while it is charging — not while it is powering the headset. No light during use is normal.

No, that is normal. The percentage covers a capacity range, so after it first reads 100% it keeps topping off to the full ceiling.

Charge it to 60–80% and store it on its own — not left on the dock or the strap.