GemOro "Susan G Komen" Sparkle Spa Pink Personal Ultrasonic Jewelry Cleaner Approximate 1.25 pint (600ml) ultrasonic tank capacity. Powerful 42&#44;000Hz energy producing sound waves per second. Built-in 3-minute timer with auto shut-off function. Safely cleans most jewelry using regular tap water (for best results use GemOro Sparkle Pak Bright blue LED illuminated stainless steel tank.