This looks similar. Mine seems to no longer exist. Cheap Chinese wifi camera. If you search for wifi backup camera you'll find a handful of this style. It creates a wifi network that you connect your phone to, the the app on you phone displays the feed. For not much more there are some cheap Chinese kits with a wireless display if you'd rather not use your phone. I'm for one less thing on my dashboard.

https://smile.amazon.com/dp/B07SGD3M1B/ref=cm_sw_r_cp_awdb_t1_bPu6EbP7BZEAW