The Clock can automatically synchronize DCF Signal.The standard movement contains a miniaturized radio receiver searches for the low frequency time signal broadcasts from the radio station DCF.Good Radio movement will work , Simple design, easy to use,Energy efficient, time .: the movement shell is made of material which is sturdy and durable for a long time, and the clock hands are made of aluminum, which is light in weight and corrosion-resistant to you with use and decorative effect. quartz clock movement,long lifetime.This kit is good size replacement both in terms of the shaft and the size of the hands. It can be a replacement for your broken clock.Great for repairing, replacing or making a clock.You are enable to use it to repair, replace or make a home clock; Applicable to -, -dimensional embroidery, craft home clock, frame-less draw clock, clockwork, etc. Perfect DIY clock kit, and specially suitable for DIY quartz wall clock replacement movement parts, etc.Type: Non-Ticking Radio Clock MovementFeatures: Silent does not tickRated voltage: 1.5VUse Battery: 1 x 1.5V AA Carbon battery (not included)Size: Movement size: 56x56x16mm, shaft length 14mm, thread 6mmcolour: blackMaterial: plastic+aluminumPackage Contents:1 x Radio Movement5 x clock hands1 set x AccessoriesOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.