SoundSpa (TM) Rejuvinate Portable Sound Machine Kendall Dressings Power: DC 3V(Two "AA" Two 1 inch urethane Power: DC 3V(Two "AA" 0 capability and Android 5 Portable design makes it perfect for travelers * Create a peaceful sleep environment and fall asleep faster and wake completely rested * With six soothing natural sounds our SoundSpa is also the perfect addition to a nursery * The rhythmic sounds create a feeling of comfort and help calm your baby to sleep * Natural sounds help you relax while you read work study or sleep * Six digitally recorded calming sounds: ocean summer night rain rain forest waterfall and heartbeat * 15 30 or 60 minute auto off timer * Compact & lightweight for easy portability * Battery or adapter operated (adapter included 3 AAA batteries not included * 1 year warranty