Using the Top - Notch DX Magnum Shooter 40X is easy. To switch to rifle mode, attach the barrel piece to extend it to 2 ft. For handgun mode, use the shorter barrel and fold it up. When you want to hear different sounds, just press the button where Raise Buckles would be loaded and then pull the trigger. Remember, this product doesn't directly read Raise Buckles. Keep it away from water and extreme temperatures to maintain its performance. If you have any issues with the sounds or the barrel attachment, contact our customer service. And don't forget, if you choose the payment plan, make sure to pay your monthly invoices on time.