This is Xiaomi Wireless Charger 20W, the Stand ver., which gives Mi 9 Cellphone a max 20W charging rate, and gives MIX 2S and MIX 3 a max 10W charging rate, gives other Qi EPP compatible cellphones a 5W-10W charging rate.
The basic bundle of 20W Wireless Stand is a wireless charger with cable; the advanced bundle includes a wireless charger, a cable and a travel charger as the bundle picture shows; other 2 bundles are adding according adapter for different region.
To use the wireless charger, the cellphone case can neither be of metal nor thicker than 4mm.
Xiaomi 20W Wireless Charger Vertical Fast Charging Stand