This jammer device provides a wide broad service in blocking signals, frequencies and GSM bands to a range of 5- 50 meters.
Built in fan , support each signal on / off separately.
6 bands signal option
CDMA :800MHz, GSM 900MHz
DCS 1800HHz, 3G : 2000MHz
4G: 700MHz, 2300MHz, 2600MHz
WiFi: 2400MHz , VHF: 135HMz, UHF: 470MHz
Power: AC 110-220, DC 12V/2A
Work by car charge or power adapter