• Teeth Whitening LED Light - Improve your teeth whitening results when you combine this light weight, easy to use, teeth whitening light with your favorite teeth whitening gel, tooth whitening pen, or Crest White Strips Whiter Smile in Only 10 Minutes - After opening your new Polar Teeth Whitening LED Light, apply your whitening gel, insert the comfort tray with LED into your mouth, push the blue start button and let your LED accelerator go to work. The 10-minute timer will automatically turn the teeth whitening LED off. Teeth whitening just got easier. WOW! • IPX9 Waterproof Design - now there is no need to worry about getting your LED light wet with saliva or when rinsing it clean post whitening treatment. • Whiten Without the Pain - This patented comfort fit tray provides a relaxed whitening experience!