 Now, 94% of shooters see an improvement in 20 short minutes. That's how effective it is. Mantis X is an at-home training system. Use your own gun. It's called Dry Fire Practice. It's high-tech. It's simple to use. You get real-time feedback on your shooting technique. You attach it to your gun. It's simple. You download the easy-to-use app. You follow the instructions.