Responses include 3 sing-along lullabies, 40 calming melodies, relaxing nature sounds and soothing shushing sounds. Choose between the 2 modes to play either music or sounds. The cot light features a 10, 20 and 30 minute timer, volume controls and light controls that operate the night light and the rotating light pattern projected onto the ceiling. The built-in sound sensor plays calming responses if baby cries. Strap included to securely attach the unit to a cot.