Choose from white noise, pink noise, or brown noise and adjust the volume to your liking. At first I thought this is crap, but it actually blocks out the noisy fan from my laptop and the hum of the next door neighbors air conditioning unit even at a low volume level.

This doesn’t look that hard to make!  Pedal powered electricity generator!  Charge your cell phone, laptop, or run a small appliance or two.  This would make a great alternative or supplement to an old gas generator.  When you lose power in a storm you know you’re not going to make …