Sphero littleBits w21 wireless receiver (5 channels)

The wireless receiver receives a signal from your wireless transmitter and activates your littleBits circuit remotely! The three channels (labeled 1, 2, and 3) on the transmitter and receiver correspond to each other and can be used simultaneously. The bit can receive a signal at a distance of about 100 feet indoors. Multiple wireless receivers can be used with a single wireless transmitter, but only one wireless transmitter can be used in proximity to another wireless transmitter. Check out our Tips + Tricks for more ideas on using the wireless receiver. New! Updated wireless bits, with 5 channel functionality, are available in the Gizmos and Gadgets Kit.