Compact unit with 10 different white noise sound options for perfect tone selection. It does not play nature sounds unless you connect it to a sound player like a smartphone, tablet, CD player, etc.
4 position auto off timer - 30, 60, 90 min; Plus continuous play
Rotary volume control with replay button plays last sound, timer and volume selection
Headphone/pillow speaker jack and iphone/ipod/mobile device input jack plus big 3 inch speaker allows use of s-100 as a speaker
Powered by micro USB adapter allowing you to power unit from laptop, PC or wall outlet for portability and versatility.