DreamCaster by compatible with Sharp Sound Conditioning Alarm Clock. Sound Machine, Bluetooth Speaker with White LED Featured sounds include: White Noise, Pink Noise, Brown Noise, Rain, Thunder, Ocean. White Noise is sometimes described like a radio tuned to an unused frequency. Pink Noise resembles the sounds of steady rainfall or wind and is often considered to be more soothing than white noise. Pink Noise has shown to improve memory. Brown Noise resembles the roar of a river current or strong wind. Common benefits associated with brown noise are relaxation, improved focus, and of course, sleep improvement. The compatible with Sharp DreamCaster Sound Machine Alarm Clock also features 3 additional sounds, Ocean, Thunder and Rain. Each of these sounds are high quality reproductions of the water sounds of nature, and are a great source for relaxation, security and comfort. SOOTHING SLEEP SOUNDS – Fall asleep to your choice of 6 different soothing tranquil sounds. Featured sounds include: White Noise, Pink Noise, Brown Noise, Rain, Thunder, Ocean. EASY TO USE DIGITAL ALARM CLOCK - This clock has been designed with absolute simplicity in mind and is very easy to operate. Includes display dimmer and sleep timer. Perfect for adults, children, teens, seniors and the elderly. BLUETOOTH SPEAKER BUILT IN – features a built-in Bluetooth speaker to listen to music, podcast, audiobooks, etc. from your phone or tablet. ASY TO READ ILLUMINATED WHITE LED DIGITS - Easy to Read White Numbers on the clock are very clear with extra bright quality, See from across the room or even without glasses in the middle of the night! ALARM BATTERY BACK UP (requires 2x AA battery, sold separately) Sleep with confidence knowing that your alarm will continue to function even in the event of a power outage. The display will be lit after power is restored.