If you are sitting while working,your height is in the range from 160cm to 170CM,we recommend regular (360-460mm) working distance. Your height is in the range from 170cm to 180CM,we recommend L(440 - 540 mm) working distance.
IF you are standing while working, your height is from 160cm to 180cm, we recommend XL(500-600mm) working distance.
Buyer can use PDCheck AR APP on phone, and save PD data screenshot.Read the tips and operate to test your interpupillary distance.There are Far PD and Near PD. you need to choose Far PD, leave your Far PD in message or add it into order notes. We will customize it according to your size.
Warranty
We provide 12 months warranty , The warranty period begins from the receipt of the goods by the initial consignee. The period is exactly 365 days from that time.
Email us if you find any techinal problem during installation. It is really our pleasure to show you and support you. Most of problem is only misuse and misunderstand how to use.
PLEASE check carefully before sending the item back as we won't responsible for all shipping cost if we found the product is not defected as you described. The right to judge the deffect from our specification . email us before you sending out the product.