Feature: 1. Light Weight: The reader combines 13.56 MHz non contact technology and light weight, which has very great mobility and convenience, and can be applied anytime and anywhere. 2. Two Interface: The reader has two interfaces, one is the Bluetooth smart interface for mobile devices, and the other is the USB full speed interface for online operation, with a maximum speed of 424Kpbs. 3. Lithium Ion Rechargeable Battery: Our reader is powered by lithium ion rechargeable battery, so you don't need to worry about the power problem when using it. 4. Powerful Function: This reader is compact in design and can work with most mobile devices with Bluetooth function, such as phones and tablets. 5. Applicable Scenarios: The reader is suitable for access control, elevator, parking, attendance and other related contents. For example, automatic verification of access control and logical access control, and inventory related content. Specification: Item Type: Reader Housing Size: Approx. 85 x 54 x 10.8mm / 3.35 x 2.13 x 0.43in(L x W x H) Power Supply: Lithium ion battery (rechargeable via USB) Standard or Certification: Bluetooth at Smart, for USB Full Speed. for ROHS 2. for REACH, for WEEE. Source Current: 500mA maximum Smart Card Interface Operating Temperature: 0-50 °C OS: For Windows for Linux, for OSX 10.7 and above, for Android Tu 4.3 and above, for iOS 5.0 and above Lithium Battery Capacity: 320mAh x 1 (Shipping with internal battery). Package List: 1 x Reader1 x Data Cable Note: Be careful when using.