Requires an AC adaptor for operation (included)nNever use an extension cord with the adaptornThe power button light will turn red when the sleeper is plugged innMusic and sounds will time out after about 30 minutes. Will need to push the music/sounds button to restartnSleeper u0026amp; playtime seat in onenComfy incline helps baby catch those zzzzzu0026#39;snFor issues, please call Fisher-Price Customer Service: 800-432-5437nHands-free rocking motion at the push of a button; 12 songs u0026amp; nature soundsnTwo rocking speeds; Linkable clacker toynRock around the clock with an inclined baby seat that helps baby sleep all naptime or nighttime long. A gentle push from you rocks the sleeper back and forth, with optional calming vibrations. The plush newborn insert soothes and helps your little one feel snug-as-a-bug. Additional features include a lightweight design that folds for portability and storage, three-point restraint and clacker rings for play. Deluxe seat pad, head u0026 body support are all machine washable and dryer safe. For issues, please call Fisher-Price Customer Service: 800-432-5437