Specifications:Material: ABSColor: BlackDelivery: semi-finished / in bulk(Optional)Power Supply: CR2032(Not Included) / DC 5V USB ConnectionItem Size: Approx. 25*4.6*7cm / 9.84*1.81*2.76inPackage Size: Approx. 25*4.6*7cm / 9.84*1.81*2.76inPackage Weight: Approx. 520g / 18.34ozNote:- Please read the Users Manual carefully before use.- The semi-finished kit has been welded, and the buyer only needs to assemble the acrylic boards, while the bulk kit needs to be welded and assembled by customers.- Long press the setting key (square icon) to switch Clock Mode / Music Spectrum Display Mode.- Short press the setting button (square icon) to pause the color change.- Short press the switch button (triangular icon) to switch the color effect.- The soldering temperature should be below 320, otherwise it may damage the LED.- The LED soldering iron must be grounded and you' d better weld fast with an electrostatic bracelet.Packing List:1 * Digital Alarm Clock1 * USB Cable