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Portable Wireless internet Jammer (Bluetooth Jammer / WIFI video Jammer) is used to block the transportation of the WIFI, Bluetooth, wireless video, has no effect to other electronic machine and human body. 1) The conference room, Library, exam room, school, bus stop, Car inside, Coffee shop. 2) Band, Government, the army, police station etc. * Features: 1) The mobile phone signal isolator is made up of up to date paste components and integrated circuits. With advanced performance, it is easy to install and use, and can work continuously for a long time. 2) As the manufacturing process strictly follows ISO 9001 quality system, the device works stable and reliable. It is an ideal, reliable security product, which can be used to strengthen information security, and protect safe production and protect the environment at the same time. * Main functions: 1) Small size, light weight, easily to operate 2) It can block Bluetooth signal effectively 3) It only shields the Shields the signals from mobile phone and does not affect the normal operation of other electronic devices 4) Slow start up circuit can avoid sparkling caused by mechanical switch * Specification: 1) Port of Output: Bluetooth, Output Frequency: 2400~2480MHz, Jamming Range: 5~15m 2) Electricity Power Charger: AC 110V~240V 3) Battery Inside: 3.7V 1100m. Ah 4) Size: 97x 46x 18mm, Weight: 100g