This is the Pocket Pinger that is sold by"sound medal money" comes with stick and extra pads.
Bought 2 by accident and don't need 2. Comes with Scan QR code for app. that works with it (free). Its over $40 by the time you buy it and pay taxes and shipping.. Also, Its most likely 2-3 weeks back loged. You get it for $30.. I been playing with the one I have and its great with coins.. I don't have an Ear for the tones but the app will keep you on the money :) It found every fake morgan I have mixed with the real ones.
Call show contact info
if you have any questions.