2 Pack Neutrik NP2X-AU-SILENT 2 Pole 1/4" Phone Plug w/Gold Contacts and Silent Switch. 2 pole 1/4" professional phone plug, gold plated contacts, red rubber overlay, silent switch The silentPLUG automatically mutes (shorts) an instrument (guitar) cable to avoid pops and squeals when changing the instrument (guitar) under load. The integrated silent switch is based on REED-technology and guarantees a lifetime beyond 10,000 mating cycles. The new PX silentPLUG features a rugged metal shell enhanced with a rubber cushion overlay for improved shock protection. Features & Benefits Avoid pops and squeals Hermetically sealed switching contacts Lifetime beyond 10'000 mating cycles Slim plug with industry proven and reliable chuck type cable strain relief Sleek attractive design for convenient handling and connections Rubber overlay on straight housing for best shock-protection and reliability