There are a handful of Pico variations offered at exceptional price, they are the most common, mostly Gloss White (GWH) and likely in stock or shortest lead time. That's his selection. Then there are the rest, 4 button (requires account), specialty for Fan & Sound (Sonos), custom Engraved, and Scene Keypad (Pre-Engraved) as well as nigh light versions. You can find these other Pico's in their respective categories however some require an account to view/buy. If you are looking for the illusive "toggle" Pico this is HomeWorks compatible only. All others a single action scene controllers. Pico's use CR2032 common coin cell battery but most last many many years with normal use.
If you are going to mount a wallplate around it, we highly recommend the PICO-WBX-ADAPT mounting bracket. This is also required as a yoke if you are mounting to a typical gang (switch) box. These are all considered "Zone" controls and intended to replace 3-way and 4- way switches. You can also program them to multiple dimmers and switches for a sort of main switch or All On / All Off. If you cannot find the PICO you want in any section try searching by exact model number or contact us for assistance. There are so many variations and unique versions it may be possible to select options which do not exist, please read options carefully if there are multiple.