VTech Baby Chilly Bug Teether The Chilly Bug Baby Teether is twice the fun with an adorable musical caterpillar and two baby teethers; A playful alternative to teething rings The water-filled apple teether is chillable and soothes teething gums while a textured leaf teether massages gums; Removeable for easy cleaning The ring design on this baby teething toy is perfect for little hands to grab and hold; connects to the VTech Pack-O-Links (sold separately) Baby musical toys promotes fun and learning; The light-up music note button activates 20+ playful songs, sounds, phrases and melodies Requires 1 AAA battery (battery included for demo purposes only; new battery recommended for regular use); intended for ages 3 months to 3 years