Package included 2pcs ferrite core 5 different size choose for cord with 3/ 5/ 7/ 9/ 13 mm inner diameter Usage- anti interference, improve signal and filter Easy to install with double snap clips Clip on all kinds of cables, like USB cable, Date line, AV cable, Phone, Power cord, Coaxial, Audio, Video cables etc., Color : Black; Material : Plastic(Housing), Ferrite(Core) HOW TO USE: Clip on all kinds of cables, like USB cable, date line, AV cable, video cable, audio cable etc,. to anti interference, improve signal and filter. SPECIFICATION & APPLICATION: 3MM (inner diameter): suitable for 1.5-3.5mm cables; Application: Car DVR, Headset Cable, Loudspeaker Cable, Mouse Cable, Keyboard Cable, USB Cable etc., 5MM (inner diameter): suitable for 3.5-5mm cables; Application: Car DVR, Loudspeaker Cable, Mouse Cable, Keyboard Cable, USB Cable, RS232 Serial Port Camera Cable etc., 7MM (inner diameter): suitable for 5-7mm cables; Application: AV cable, Coaxial Audio, Audio Power Line, IP Serial Port Camera etc., 9MM (inner diameter): suitable for 7-9mm cables; Application: HDMI Cable, VGA Cable, DVI Cable, Power Line, Loudspeaker Cable, Industrial Cable etc., 13MM (inner diameter): suitable for 9-13mm cables; Application: HDMI Cable, IP Line of Communication, DVI Cable, Overstriking VGA Cable etc.,
R**R
Don't waste your time
They made very little difference. I returned them for a refund
Trustpilot
2 weeks ago
5 days ago
