Looking for an educational experience for you or someone you know? This simple self-assembled circuitry would work perfectly! Powered by just 1 CR2032 battery, these educational circuits sense motion and light up as well as emit a loud beep for a short duration. Each purchase comes with a circuit board, transistor, motion sensor, CR2032 holder, LED and piezo buzzer. All items are neatly packaged and ship with instructions as well as fact-sheets regarding the included electronics for extra information and learning! Details: Length from battery-pack to LED wire-base: ~4in Batteries: 1 x CR2032 - NOT included Payments & International Shipping: If you have any issue making a payment or with shipping on your order, please send us a message, we'll be glad to assist any way possible to make sure you get your item. Thank you. YES, we do ship worldwide! International customers will receive a standard shipping price from us. We will pay any additional shipping charges such as insurance to ensure you get your item(s)! Ships from: Georgia, USA For specific information on how returns are approved, denied, and processed, please view our Return policies.