CREATE INVISIBLE BARRIER - Use the SpyX Lazer Trap Alarm to set up an invisible barrier and protect your hideout. With 1 x LED Receiver Unit and 2 x Laser Transmitter Units, set the traps up to 4 feet apart to create your custom laser barrier. FANTASTIC SPY FUN - A fun way for any spy to protect their property. Bring a smile to your junior agents face today by helping them protect their headquarters with a SpyX Lazer Trap Alarm. ALARM FEATURES - Once armed, the alarm will sound for 5 seconds if either light beam is interrupted. Press the on/off button once to cancel the alarm and press again to re-set the system. Connect multiple sets to secure a larger area! You can use a white card to help you position the LED beams more easily.
eBay