This is the wireless version that retails for $200. It's on sale for $149.99 at Lowe's until February 22.
The wired version has been sold for as low as $90, but this wireless version is a good option for those who don't have existing doorbell wiring or want to pay for an electrician.
None of the Lowe's near me had this item in stock and the website shows it won't be available until March 1. So I used Best Buy to price match through their chat.