Brass & Enamel Custom NFC Challenge Coins Make For The Best Business Card Alternatives Gray Water Ops is the leading name in challenge coin design, and their new equipment means that even more design options are now possible. Recently, they secured the patent for a technology that would allow their challenge coins to function as digital business cards - and much more - using NFC chips. Thanks to their new engraving equipment, they can create highly intricate details on both faces of their challenge coins, and can engrave information on the edges as well. These two advances combined mean that you can create stunning, made- to-order products that also function according to your programming. Passing the coins over any NFC receiver can instantly transmit contact data, or link to members-only websites. The only limit is your imagination! This product is totally unique in the challenge coin market and is sure to make a statement at your next business meetup. Pre-order production is under way for bulk orders of over 200 pieces. To receive a fully functional prototype test coin, contact the Gray Water Ops team. More at https://GrayWaterOps.com