1. The clock can automatically synchronize Germany DCF signal 2. The standard movement contains a miniaturized radio receiver that searches for the low-frequency time signal transmitted from the German radio station DCF. 3. Good radio mechanism works well, simple design, easy to use, energy efficient, accurate timekeeping. 4. Quality material: the movement shell is made of material that is sturdy and durable for a long time, and the clock hands are made of quality aluminum, which is lightweight and corrosion-resistant to bring you nice use and decorative effect. Quality quartz movement, long service life guaranteed. 5. This kit is a good size replacement both in terms of the shaft and the size of the hands. It can be a replacement for your broken clock. Perfect for repairing, replacing or making a clock. You can use it to repair, replace or make a home clock; Applicable to -, three-dimensional embroidery, craft home clock, frameless drawing clock, clockwork, etc. Perfect DIY clock kit, and especially suitable for DIY quartz wall clock replacement movement parts, etc. Radio-controlled clock movement manual: 1 Overview: When the RCC switch is in the ON position, it has the function of radio wave reception. If it is in the OFF position, radio wave reception is not performed. 2. Start: Insert the alkaline battery (AA1.5V, LR6) into the battery slot (pay attention to the polarity of the battery), you can see that the second hand sweeps to zero (sometimes you need to press the reset button), after sweeping to 12:00, the hour, minute hand also starts to sweep to 12:00, and after the three sweeps are completed, it enters the receiving state and starts to receive radio signals. This process takes Specification: Type: Non-ticking radio clock movement Total shaft length: 14mm. Thread: 6mm Second hand length: 126mm/4.96 inch Minute hand length: 105mm/4.13 inch Hour hand length: 83mm/3.27 inch Thread length: 14mm/0.55 inch Host size. 56 x 56 x 16mm Nominal voltage: 1.5V Battery life (specification): . 12 months Battery used: .5V AA carbon battery (not included) Color: black Material: Plastic + Aluminum Package Contents: 1 * Non-ticking radio mechanism 3 sets * 3 clock hands 1 set * Accessories Note: This radio wave movement is only limited to Germany and the United Kingdom. It can only be used when the signal is received. Please know! The above package content only, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.