- 3.5 mm 1/4"" (male) jack to 3.5 mm 1/4"" jack (male)
 - Gold-plated connectors
 - Narrow plug
 - Double-insulated with aluminum foil
 - Tinned copper spiral shielding
 
This simple patch cable connects your phone or laptop to most audio systems. Mini jacks are also known as 1/4", or TRS jack (tip-ring-sleeve) and 3.5 mm jack. They carry a line-level signal.