[1] Tinsel wire is commonly used in cords of telephones, handsets, headphones, and small electrical appliances.
Tinsel wire is produced by wrapping several strands of thin metal foil around a flexible nylon or textile core.
Typically, multiple tinsel wires are jacketed with an insulating layer to form one conductor.
It is also used in power cords for small appliances such as electric shavers or clocks, where stranded cable conductors of adequate mechanical size would be too stiff.
[2] Tinsel cords are recognized as type TPT or TST in the US and Canadian electrical codes, and are rated at 0.5 amperes.