Product Highlights: 1. The surface of the handle is non-slip rubber, the shape is in line with the human body mechanics design, can easily hold, portable and lightweight 2. UHF broadband shielding technology within 5s efficient interference blocking signal 3. Long-range shielding distance 1000-2000 meters (frequency-hopping aircraft 1000 meters), low power 300-1500 meters (frequency-hopping aircraft 300-500 meters) 4. Built-in lithium battery, comes with a power adapter can be used for a long time after a full charge of 45 to 1 and a half hours (the more power the shorter the use of time), indoor and outdoor are convenient 5. Remaining power display prompts you to prepare for charging in advance