Hi there! Based on the search results, it looks like replacement remotes for Sony home theater systems are available from R89.99-R699. I'd recommend the Studio Sony Replacement Remote for R89.99 as it's one of the most affordable options. The Replacement Remote For Sony Home System Audio MHCV44D SHAKE-X70D for R420 would also be a great choice to control your home theater system. Apologies that there wasn't a result that exactly matched your DAV-DZ350 system, but these replacement remotes should work well. Let me know if you need any other details!
