You can release them manually but I use the Dogtra electronics package and ordered directly from Zinger and have also used Gun Dog Supply. You'll also want .209 primers. I prefer Cheddite and order from Dogs Afield. Think they have the best prices and shipping.http://www.dogsafield.com/CHEDDITE-209-PRIMER-1000/productinfo/R432-005/#.WIvrY8s8KhCDo you have to use remote releases with all zingers or do they have manual releases too? If purchasing one with electronics what is the preferred package and website to purchase from? Seems like Gun Dog Supply is popular.
The zinger winger II I purchased just a few weeks ago was cheaper than any gu, at 299.00.I couldn't see spending the extra dollars on the zinger - both products throw birds or bumpers or dokkens quite well. I have the Gunners Up Son of a Gun models and like them. I have never had an ounce of problem and use them nearly daily in the summer (not so much in the winter). I used the extra money to buy dokkens.