... machine,teeth whitening light device Treatment range:1. For the teeth affected exogenously, such as the teeth affected by coffee, sauce, tea ... of time and effort in developing the series of Q switch laser machine,IPL,RF, Elight, Long pulse laser ,Er Glass ... service product, you can enjoy free maintenance to the main machine within 5 years. Contact Information:Contact name:Fairy zhouBeijing Zohonice ...