Optional equipment is also available for throat illumination and nasal examination.
It averages 120 minutes of on-time between charging. It has the smallest diameter of any 3.5v power handle on the market. It has a soft grip rheostat intensity control, and AC charging module with retractable prongs that is easily removable from the handle. The Welch Allyn 3.5 volt power handle features the highest output for brightest light of any diagnostic handle on the market today. It is manufactured of the highest quality steel components with a quality knurled finish for comfort.