1. Supports 10 touch points, and the actual number of touch points depends on the software system 2. Tempered glass panel, hardness up to 6H 3. Full screen fit, good display, dustproof Support Devies Used for 4B/3B+/3A+/CM4/CM3+/CM3 Note: you need to buy 22Pin to 15Pin converter cable when use for CM3/CM3+/CM4 Support Systems Used for OS (10-point touch, need driver) Device Connection: Connect for 4B Connect for 3B+ Note: for is not included IPS Display Panel Excellent display performance, up to 170wide viewing angle Material: plastic+metal colour: Black Package Contents: 1 x Round IPS Display 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.