Works with any passive TV antenna; High-gain amplifies VHF & UHF signals with a low noise level, less than 2dB; Dual-color indicator for long & short reception; 3ft & .3ft extension coaxial cables attached at either end; Must be powered to function through included USB cable ; Engineered & designed in the USA; All-in-one design allows an easier connection between passive antenna & TV to deliver correct balance between short & long range reception; Blocks 3G & 4G wireless signals to ensure noise-free digital TV reception; 24-hour access to online customer support & installation assistance from manufacturer; Includes USB AC/DC power adapter, USB cable & instruction manual; 1-year warranty ; White;