Features COMPACT AND PORTABLE --- The WiFi interceptor is lightweight and compact, easy to carry, plug and play POWERFUL FUNCTION --- WiFi bluetooth interceptor has strong ability to block wifi signals and is easy to use APPLICABLE SCENARIO --- WiFi signal interceptor is suitable for offices, schools and other professional fields TECHNICAL PARAMETERS --- WiFi bluetooth interceptor frequency parameter is 2400‑2485MHZ, shielding radius from 5‑10meters, safe and efficient EASY TO USE --- U disk type WiFi interceptor support plug and play, very convenient for you to use Specification: Item Type: WiFi Interceptor Model: W1 Frequency Parameter: 2400-2485MHZ Shielding Radius: Approx. 5 ~ 10meter / 16.4 ~ 32.8ft Use: Plug and play Package List:1 x WiFi Interceptor Package List 1 x WiFi Interceptor