5Star-TD HammerHead Battle (Pack of 2) Featuring real triggers and recoil action These blasters use specially designed "NRG Rounds" Blasters can fire up to 75 feet "NRG" Rounds are reusable, and leave no marks or messes This special bundle comes with 80 rounds of "NRG" ammo To optimize the real battle and team experience download the free iOS or Android apps that uses GPS technology to bring video games into real life! The app provides an amazing interface that includes: - Interactive heads up display - Live chat - Radar tracking (using your devices GPS) Then attach your smartphone to the blaster, and play a video game styled battle with your friends in real life