Welch Allyn PocketScope Universal Desk Charger, Model 79290 is a compact, portable unit for convenient drop-in recharging of desk/well-charger instrument handles.  Features colored LEDs, advanced circuitry for constant automatic safe charging and optimum lamp performance and life.  Add the Welch Allyn optional wall mount kit for permanently mounting to wall or cabinet or optional specula tray to  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).