Sophisticated home audio distribution systems require sophisticated wiring. This unique cable incorporates a 16/4 in-wall speaker wire and a UTP CAT5e cable to seamlessly transport both your speaker level and control level signals. Because Impact Acoustics in-wall speaker wire is made from 65 strands of 99.9% high-purity copper, it is very flexible and unlikely to kink during installation. CAT5E UTP cable for home networks and low voltage applications consists of four twisted pairs of 24AWG, 350MHz cable. This cable is CL2-rated for use inside walls and features a flame-retardant jacket. All cables are color-coded for easy identification. To help you keep track of cable used, the cable jacket is sequentially marked every two feet.