REMOTE SOUND ACTIVATED: The crashing decoration has an on/off switch. When switched on if you clap your hands (or make a loud noise) in the vicinity of the decoration it will jump into life with the legs furiously wriggling and kicking as if they have just crashed through your window and are struggling to get out! BATTERIES AND CARE: Requires 3 x AAA batteries (not included). The product has an on/off switch. Product must be switched on for sound activation to work. But even when switched off the product can still be activated by clicking the 'Try Me' button. FAST & EASY TO SETUP: Comes in two parts - head and torso and kicking legs - with suction pads on each. Simply apply the broken glass effect sticker to the window, or surface that you are crashing through and then attach the front and rear using the suction cups. Switch on and clap and watch the hilarious leg kicking animation. FESTIVE ANIMATED CRASHING REINDEER: Fabulous reindeer crashing through your window Christmas decoration. This must have seasonal decoration will give you and your festive visitors sack loads of fun. Apply the broken glass effect window sticker and attach the front and back ends to either side of your window pane and then sit back and enjoy the hilarious wriggling, kicking legs animation and confused, startled facial expressions. SIZE INFORMATION: Approximate dimensions - 40cm wide by 55cm long. (Measuring both sections to reach the length).