Check sites like or the retailer you bought it from (Amazon, Walmart, or AliExpress often host the digital files).
: Once powered, the hands will typically spin quickly and stop at the 12:00 position Signal Search ch-899 chouchin radio controlled clock manual
This is the feature that makes the CH-899 special. After you have inserted the batteries and set the time zone, the clock will attempt to search for the signal. Check sites like or the retailer you bought
This clock automatically sets itself to the correct time using radio signals. Please read this manual carefully before use. ch-899 chouchin radio controlled clock manual