Use this if you are outside a radio signal range or the signal is weak. Press and hold the button for approximately 3 seconds to enter manual mode. Fast Advance : Continue holding the button; the hands will begin to move quickly. Fine Adjustment
Once powered, the hands will quickly advance to the 12:00 position and stop. The clock will then begin searching for the radio signal (WWVB in the US or MSF in the UK). ch-899 chouchin radio controlled clock manual
The CH-899 Chouchin Radio Controlled Clock is a precision timekeeping device designed to synchronize automatically with standard time signals broadcast by atomic clocks. This ensures that the clock always displays the correct time without the need for manual adjustment, including automatic updates for Daylight Saving Time (DST). Use this if you are outside a radio