Sweet Dreamz On the Go - Fox: this fluffy travel companion features four different nature sounds to calm kids and promote peaceful sleep. Three different modes allow you to select the perfect setting while calming baby and easing them to sleep, wherever bedtime may land. The Sweet Dreamz On the Go - The Fox includes a Smart Sound Sensor. If your baby wakes up and makes any sound, the sensor restarts the music to help baby fall back asleep. To help preserve battery, the unit has a 15-minute auto shut off timer for the nightlight and a 45-minute auto shut off timer for the sounds and lullabies.The heart-shaped clip allows you to attach the fox everywhere. Features: Smart Sensor; 4 White Noises; 4 Melodies; 45min Timer; Glowing Face;.