The EMFX pouches block all radio signals to and from your cellular phone using a specialized conductive textile lining. If used properly the EMFX can prevent your cell phone transmissions from being maliciously intercepted or used to track your location. Placing your cell phone in the EMFX pouch, whether it's on or off, provides an insurance policy that your phone's radio transmitting and receiving functions are disabled while still keeping your phone accessible and ready to use. Aside from cloaking your cell phone, the EMFX pouch will also prevent your phone's signal from interfering with other nearby sensitive electronic devices. EMFX pouches have a roll-top closure and a multi-direction belt loop system.