The wireless blocker transmits on three primary frequencies, block all nearby wifi network activity, Bluetooth devices and wireless video camera signals. Turned on signal blocker, security for 15 meters radius, and turn off, re-established all the wireless network activity automatically. Best quite simply one on the market today.
Spy camera and audio bug blocker with isolating Signal Bandwidth: - 1.0G: 895-1000MHz, - 1.2G: 1195-1300MHz and - 2.4G: 2395-2500MHz, and the Power Source are Wall plug, car adapter, or built-in battery.
Internal Battery is 2000mAh rechargeable Li-ion, the life is 90 minutes. The dimensions are Antennas off (L*W*H): 112*60*30mm and Antennas on (L*W*H): 195*60*30mm.
Compact size is only slightly bigger than a standard IPOD (antennas off), run on AC power or battery power. Electrical power and recharging from AC charger (110/220V) certified by the Security Ministry of China, so you know it works well!