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    Product Notes This Portable Quad band RF Jammer is a high-power radio transmitter, it is able to block four frequencies 310MHz, 315 MHz, 390MHz and 433MHz.and the customer can choose one from 315MHz, 418MHz and 430MHz according to their requirements. When it worked with plug power the jamming distance could get 50m, while work with battery is 30m. If you want to buy one, just come here, we will provide high quality with reasonable price for you Specifications: Frequency Jammed:310MHz/ 315MHz/ 390MHz/433MHz (+/- 2MHz) Power Supply: 9V(Battery or Power adaptor) Operating Range: UP to 50 meters radius Working current: 400mA Dimension: 125*125*33mm Color: Black Note: The jamming distances we mentioned on website are for customer’s reference only. The actual jamming distance will be varied depending on the signal strength and the use location and if full charges, etc.

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