Smart Medical Buyer presenting Up To 35% OFF on 3M Littmann Products. Minimum order value Rs. 1,357 to redeem the Coupon Max discount 42% per user. Use the coupon code & grab an extra 7% OFF. Products: Classic III Stethoscopes. Electronic Stethoscopes. Master Cardiology Stethoscopes. Spare Parts Kit, and more. This Coupon is valid for all users. Click to GET CODE to copy the coupon and apply at cart checkout.