Ionic Whitening Device Features: 1) Light treatment is the latest whitening technique used by dentists, 7 LED lights combined with ionic whitening refill, after 2 minutes to automatically switches off, rapidly removes surface stains and penetrates deeply to remove embedded stains 2) Works great on stains caused by coffee, tea, smoking, red wine, fruit juice, cola, aging , acheomycin, medicament and fluorin 3) Designed to be used at home and is extremely easy to use 4) Adopt the principle of physics reductive, so it is harmless to your health 5) Makes you smile confidently Contains: 1) 1pc lonic whitening light unit 2) 1pc whitening rinse spray 3) 1pc whitening rinse accelerator spray 4) 3pcs whitening gels 5) 3pcs whitening gel accelerator 6) 1pc user's guide 7) 1pc 9V battery