LectroSound White Noise Machine – Link

— Clip the $3.14 coupon on the product page.

• Personalize your sleep experience with the perfect sleep sound
• During the day, it’s great for masking sounds for increase privacy and focus
• Works any powered USB port, or use the included USB to AC adapter
• Easy to take with you, whether it’s across the room or across the country
• Warm, robust, truly random white noise at an affordable price