This Welch Allyn power sources is both lightweight and economical. Compatible with both desk or wall chargers, this handle makes it easy to always have a full charged power source for your otoscope. 

Product features: 

• Well balanced, lightweight and rests comfortably in the hand 
• Adjustable rheostat controls light intensity 
• Long-lasting rechargeable Nickel Cadmium battery (included) 
• Handle: Silver, chrome-plated brass with knurled finish 
• Works with all 3.5V Welch Allyn and Heine otoscope heads 

Looking for a replacement battery for this power source? The Welch Allyn #71670 uses