One For All Signal Booster 1-way The One For All Signal Booster amplifies TV and radio signals and offers a solution for watching interference-free TV. It prevents signal loss or picture freeze caused by long cables or multiple TV-audio sets connected to one source. It incorporates a unique 3G/4G filter, filtering out and blocking unwanted interference from mobile phones delivering interference free reception.We are the specialist in Audio-Video accessories with more than 20 years of experience. The Signal Boosters are a great asset to our wide accessories line-up1 x One For All 1 Way TV Signal Booster; Warranty; Manual.