MukikiM 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! Roll the Spy Bug by your target and hear every word that is said. Transmits up to 50 feet away, even through walls! Bug always stops in 'up' position, for optimum listening conditions. Receiver with attached earbud can be worn on your belt and hidden from view. Collect all SpyX toys for the ultimate spy play experience.