1. the product is a low-cost solution, which uses amoled instead of traditional using micro-led screen, so the capsules display be a little obvious 2. the product is a programmable and developed product. the current factory program is only a test routine. the display content and slot placement of the screen can be adjusted through the program.<br><br>note:1. pupillary distance is about 25mm. 2. the display effect is the shape of the pixel dot after magnification!!! Colour:Black Material:plastic<br><br>Package Contents: 1 x Glasses<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.