Teddy Ruxpin is an animatronic children's toy in the form of a talking bear. The bear's mouth and eyes moved while "reading" stories that were played on an audio tape cassette deck built into its back. It was created by Ken Forsse with later assistance by Larry Larsen and John Davies, and the first version of the toy was designed by the firm RKS Design. Later versions would use a digital cartridge in place of a cassette. At the peak of his popularity, Teddy Ruxpin became the best-selling toy of 1985 and 1986.