Feature: 1. Non‑contact card reader which response speed does not exceed 0.2 seconds, and the maximum reading distance is 50cm, very sensitive. 2. Fashionable and compact, suitable for indoor desktop placement and use. 3. Multi‑protocol compatibility, suitable for ISO18000‑6C and for ISO18000‑6B standards. 4. Equipped with a circular LED display, full of sense of technology. 5. It adopts the USB interface, whose wire stretches out about 1.4m, and it is plug and play to connect to the computer without installing a driver. 6. The product has a built-in buzzer that can effectively give out prompts. 7. Acrylic panel and PVC cover, with simple appearance, and full of exquisite workmanship. Specification: Condition: 100% Brand New Item Type: Smart Contactless Reader-Writer Material: Acrylic, PVCSize: Approx. 105 x 65 x 15mm / 4.1 x 2.6 x 0.6in Working Frequency: CN Standard (920～925MHz) US Standard (902～928MHz) Other Multinational Frequency Standards (Customized) Label Agreement: fOR ISO18000-6C (EPC GEN2) fOR ISO18000-6B FHOP: Frequency Hopping Spread Sprectrum (FHSS) or Fixed Frequency (Can be set by software) Antenna Parameters: 2dBi Circular Polarization Antenna (Built-In) Output Power: 12.5dBm～26dBm (Adjustable) Reading Distance: Maximum Reading Distance of Tag: 0.5m / 19.7in (Related to factors such as transmit power, antenna type, tag type and application environment.) Maximum Distance for Writing Tag: 0.2m / 7.9in (Depending on factors such as transmit power, antenna type, tag type and application environment) Operating Mode: Active Mode Passive Mode Answer Mode (Not Recommended) External Interface Working Environment Power Interface: DC +5V Operating Temperature: -20℃～55℃ Communication Interface: USB Virtual Keyboard Storage Temperature: -40℃～85℃ USB Virtual Serial Port (Need to be customized.) Power Adapter: USB Powered RS-232 Signal Wire: Equipped Power Cable: Equipped Development Kit: Provide SDK . Package List: 1 x Smart Contactless Reader-Writer1 x USB Cable