3.5 V Lithium Ion Rechargeable Handle. Twice the on-time, half the weight, and fits more comfortably in your hand.

Features & Benefits:

• • Half the weight of traditional 3.5 V handles
• • Fits all Welch Allyn 3.5 V instrument heads
• • 120 minutes of on-time (compared to 60 minutes for standard NiCad handles)
• • Made of sturdy CYCOLOY engineering resin
• • Low-battery indicator
• • Lithium ion battery technology that has no memory effect
• • AC charging module is easily removable from the handle and has retractable AC prongs (model 71902/71904 only)