Studies show that children do not fully understand the concept of time until around 8 years old. MELLA uses colors and facial expressions to teach your kid when it's time for bed and when it's okay to wake up. With MELLA, your kid can learn to stay in bed longer, giving you more sleep! Features: -Sleep: Set the desired sleep time and every night, MELLA will go to sleep with your kid. MELLA sleeps through the night so your kid knows to stay in bed. -Play: Half an hour before the wake time, MELLA will display a playful expression and glow a yellow light. Teach your kid to play quietly until the light turns green! -Wake: Set the desired wake time and MELLA will greet your kid with a smile and glow green. It's time to start the day -With an easy-to-use user interface, MELLA is packed with features designed to be your child's all-in-one sleep gadget. -Choose from three child-friendly alarm sounds to start the day -Select from three peaceful sleep sound options: white noise, ocean and lullaby -Create a soft room glow with five night light color options -Set a timed countdown for naps, time-outs and other activities - add a sounding or silent alarm! Dimensions: 4.25" x 4.25" x 4.50" Weight: 0.5 lbs (8 oz) Material: Child-safe ABS; LED Child Lock Mechanism: Yes Display: 4 brightness settings, 12/24 hour toggle Volume: 4 volume settings Speaker: Mono Power: Type A A/C wall adapter included (Input: 100-240 V, Output: 5 V) Cable: Detachable 4 feet USB Battery: CR2032 (to preserve basic memory settings) Approvals: FCC, CE, RoHS, REACH, CA65, CPSIA