Amazingly White and Comfortable The BT Cool Plus bleaching system is equipped with the latest LED blue light technology, delivering more effective, comfortable and reliable in-office whitening without producing heat and noise. Instant whitening with advanced LED blue light technology for more comfortable operation without heat and noise 360° rotatable, arc-shaped lighting zone allows complete full-mouth whitening Various preset modes allow easier customization and better compatibility with most bleaching materials Ergonomics design with an adjustable swivel arm and mobile wheels LCD display provides easier operation and extra safety indication