SpyX / Roll-In Spy Bug Spy Toy. Roll it in near the enemy and listen in from far away - even through walls! Perfect addition for your spy gear collection! Listen to what your opponents are planning against you with Spy X roll-in spy bug. Hear secrets clearly with this easy to conceal spy gadget. The set featuring roll-in spy bug and a receiver helps kids listen conversations up to 50 ft. away and even through walls. They can hook the receiver on their belt and keep it hidden from view. The essential stealth surveillance tool - just roll it into the area that you want to surveil. Always stops in the up position so that you will hear everything clearly. Transmits up to 50 feet away. Spy X is a Jr. Spy Line, perfect for boys between 6-16 years old. Taking design cues from cutting edge technology and real field equipment, it’s the next generation of cool. Designs are rough and tough, just what boys are looking for. The Roll In Spy Bug lets you roll it into wherever you need to spy while always stopping in the up position. It can transmit up to 15 meters away and even through walls! The receiver has an included ear bud and can be worn on a belt so it’s hidden from view. 2AA and 2 AAA batteries are required for use and are not included