Byron Wall-Mounted Door Chime Kit
Battery is a 9v PP3
The answer to the question you're probably asking: the battery is a PP3 (9v).
Bought one of these and it was broken in the box - a terminal missing from the battery connector. Its replacement seems fine, however.
Only small criticism is that it's slightly out of tune - the dong sounds slightly wrong compared to the ding. Nothing you can't live with though.
10 Feb 2015
Unlike one of the previous reviewers we appear to have a perfectly good ding and a dong so very apt for Xmas!! I Despite my electrician telling me that my transformer is functioning correctly and the bell was the issue I could not get this to operate on mains power so switched to battery power and now back in business!!
22 Dec 2014
Bought this to replace wireless doorbell. Read previous reviews but still went ahead with purchase. No mention of what battery was required. Wire is thin but ok if careful, used auto strippers to remove insulation at each end. P clips supplied are way too large for supplied bell wire. Mounting screws and rawplugs are fine. Works well no problems.
27 Dec 2013
Ding no dong
Bought it, got home, set it up to discover that it dinged but didn't dong. It was also very quiet so had to take it back.
Screwfix were very good and refunded straight away.
24 Oct 2013