The ACS ACR1255U-J1 is a 13,56Mhz contactless reader with the convenience of having both Bluetooth® connectivity as well as a standard USB connection for users working in a busy environment. It supports ISO14443A/B for popular cards like Mifare Classic and Mifare DESFire as well as ISO 18092 for most NFC tags. As it has a neat, compact design supporting a Lithium-ion rechargeable battery it is designed for extreme portability and connectivity with Bluetooth-enabled smartphones and tablets. The ACS ACR1255U-J1 is a smart, all-round reader capable of handling hands-free verification for physical and logical access control and inventory tracking. The firmware running the ACR1255U-J1 can be upgraded in the field for future-proofing. It supports from Android™ 4.3, from iOS 8.0, from Windows® 7 and Mac OS® 10.7 and later.