Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Twice the power, half the weight * Smaller diameter and half the weight of 3.5v Ni-Cad handles * 120 minutes of operation between charges (compared to 60 minutes for standard Ni-Cad handles) * Charges in universal desk charger or with removable AC adapter * Compatible with all Welch Allyn 3.5v instrument heads * Low battery indicator light *