... whitening gel to remove teeth surface stins. 1, This cute dental whitening laser adopt light treatment technology, combined with carbamide peroxide ... , Designed for home use 4, Easy to operate 5, Power supply: 3V DC/2 x CR2025 Parts: 6, light transmitter: One ... peroxide gel two pcs8, CR2025 lithium battery: Two-pieces 9, Dental tray: One-piece 10, Instruction manual: One-piece Cute ...