Adscope 603 Clinician Stethoscope. One of the most popular acoustic scopes, the 603 combines outstanding acoustic performance with rugged durability, now with AFD technology. ADC's AFD Technology provides enhanced acoustic response in an adult diaphragm, includes accessory kit with 2 pairs of spare Adsoft Plus ear-tips, Scope ID Tag included, Weighs 5.77 oz. (165 gr), overall length 31", Lifetime Warranty covers all parts.