Universal handle accepts all Welch Allyn 3.5 V instrument heads - Well-balanced handle rests comfortably in the hand. Weight is evenly distributed end to end - Adjustable rheostat control#free-floating reserve setting allows optimal intensity and battery life - Economical#long-lasting rechargeable nickel-cadmium battery included - Sure grip#smooth, nonabrasive knurled finish ensures a no-slip grip - Chrome-plated brass handles with durable, long-life construction - Safety switch to prevent accidental draining of battery - Metal head connectors for durability

WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov