1. Cptibiity: id 9th Gen 2021 10.2 inch(Mde:A2602 or A2603 or A2604 or A2605), id 8th Gen 10.2 inch 2020(Mde: A2270 or A2428 or A2429), id 7th Gen 10.2 inch 2019(Mde: A2197 or A2198 or A2200), id Air 3rd 2019(Mde: A2152 or A2123 or A2153) nd id r 10.5 inch 2017(Mde: A1701 or A1709)br> 2. Revbe keybrd: gnet fixed keybrd, Buetth keybrd nd ether cse cn be used seprtey.It is cptibe with Windws, Andrid nd iOS, nd cn be used n vrius srtphnes nd tbets.br> 3. Cnvenient stnd functin:The id cn be used s it is nd used s keybrd! It cn be used s stnd using the id, nd is recended nt ny fr wtching vies but s fr wrk nd study!br> 4. Buitin penci hder: The utrthin keybrd cse hs buitin Appe penci hder, which is cnvenient fr string Appe pencis nd vids sing the pencis (Appe pencis re nt incuded).br>