Snap Circuits Spy Kit

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Unlock 25+ spy missions with the Snap Circuits Spy Kit—an all-in-one box of secret agent engineering fun. Build a working motion detector, activate a voice changer for cryptic mess ages, construct trip wires, and create vibration sensors to protect your valuables. Trigger alarms with light or sound activation and discover how real spy gadgets function. Perfect for birthdays, parties, and sleepovers, this STEM toy combines hands-on learning with hours of engaging play. Ideal for boys and girls who love mystery, technology, and covert operations. Show more