* Colored LEDs indicate power to the unit and that handles are charging * Advanced circuitry for constant automatic safe charging and optimum lamp performance and life * Compact for convenience and mobility * Optional wall mount kit for permanently mounting to wall or cabinet * Optional specula tray conveniently stores swabs otoscope specula and curettes * Accepts 3.5 V or 2.5 V well-rechargeable NiCad handles Lithium Ion Handle and PocketScope handles (only PocketScope handles require an adapter)