A: Most CH-899 models have a continuous sweep second hand (silent). If yours ticks loudly, look for a "Silent" switch on the back. Not all models support this.
: Radio signals are strongest at night. If it doesn't set during the day, leave it by a window overnight. ch-899 chouchin radio controlled clock manual
Release the button and press it briefly to move the time forward by one minute at a time. A: Most CH-899 models have a continuous sweep