Jakcom&reg; R3 Smart Ring Consumer Electronics Mobile Phone Accessories 2016 Trending Products Android Smart Watch Phones Smartwatch (Black, 9) JAKCOM R3 Smart Ring is a Wearable electronic components. JAKCOM R3 can simulate and copy any IC and ID cards , like access control cards of House door or Building door, Elevator card, Parking card, Time card, Payment card, Supermarket card, transportation card. JAKCOM R3 has Build-in Germanium, Volcanic Magnet and FIR Energy Stone in this ring , it can improve human performance effectively JAKCOM R3 carries a new NXP smart NFC chip, it brings top speed operation experience to the following Android mobile NFC features,like "Private Note","Mobile phone lock","Quick start","Share information". JAKCOM R3 No need battery charging and IP68 Waterproof.