DX Engineering Ferrite Snap-On Beads provide a high degree of RF choking and they can dramatically reduce RF noise. This UHF Snap-On Bead Combo pack is intended for special purpose applications on wires and cables. Effective RFI and noise suppression of UHF and higher frequencies is provided on power, control, keying and audio wires. With a sufficient number of these Snap-On Beads, pulse noise and RFI may be virtually eliminated. A variety of bead sizes cover many types of wires and cables. Large Snap-On Beads are big enough to be placed on large bundled control cables and power supply cables. Medium size beads offer good surface area for a larger number of turns of smaller wire. Although some effort is involved with winding smaller wires around snap-bead cores before closing them, a much greater degree of RF noise suppression is achieved. Snap-On Beads provide excellent value for RF choking on larger wires and cables with plugs.