https://www.theverge.com/2018/8/29/17795120/acer-ojo-500-windows-mixed-reality-headset-features-price-release-date

Acer is introducing a new version of its Windows Mixed Reality headset at IFA in Berlin today. The Acer OJO 500 includes a more modular design with detachable parts. It’s designed for businesses like museums or attractions that might have customers using the headset multiple times per day, and both the lens and head strap can be fully removed and cleaned. Acer is shipping the OJO 500 with either a hard or soft head strap, and the soft version is machine washable.

The mask on the headset can be flipped, so you don’t need to remove the headset fully to check your surroundings. Acer is also including a built-in interpupillary distance (IPD) wheel to adjust the distance between the display and people’s eyes. This should make VR apps and games in Windows Mixed Reality a little clearer and sharper.