If you see one of those old Olts at the neighbor's yard sale for $2 or 3$, snap it up. They are no longer made and fetch from $40.00 to $200.00 on eBay depending on the condition. The ones in a box in great condition with the instructions usually go for $150.00 to $200.00. They are the most misunderstood call made. Learning to use one is awful----you will faint it takes so much air to get them to buzz but once you get it, they are easy to operate.