Drone Defender initially resembled a cross between an assault rifle and a television antenna. The handheld jammer also includes a battery-powered backpack power supply, and altogether the system weighs approximately 15 pounds. The battery is good for up to five hours of continuous operation. DroneDefender broadcasts on a wide variety of frequencies for maximum coverage, particularly 2.4 GHz, a common civilian drone frequency. It also broadcasts on industrial, scientific, and medical radio bands.