US card scheme Discover has begun issuing contactless credit cards and stickers, targeted at early adopters of mobile technology.
The contactless technology - branded Zip - is being issued in two form factors, either embedded in a conventional plastic card or as a sticker that can be applied to a mobile phone or other personal items.
Select Discover cardmembers began receiving the firth batch of Zip cards and stickers earlier this month, with a larger roll-out across the member base beginning January.
Currently, over 100,000 US merchant locations offer contactless readers that accept Zip transactions at the point-of-sale, says Discover.
Mark Scarborough, senior vice president of cardmember marketing at Discover, says: "Given how tied consumers are to their mobile devices, we know they will appreciate the tremendous value and convenience Discover Zip contactless cards and stickers provide."