Technical Specifications RF Frequency for America Market Frequency : 850-894MHz; 925-960MHz; 1805-1990MHz; 2110-2170MHz RF Frequency for Europe Market Frequency: 925-960MHz; 1805-1880MHz; 2110-2170MHz Output Power: 0.4W Jamming Radius: Up to 10m (5-10M by your background signal strength) Jammer Weight: 68g/PCS Power supply: (AC220VDC5V) The color of the jammer: Black Thejammer warranty: 12 monthsAccessories cell phone jammerCigarette adapter Battery Charger User Manual