[Working frequency] only supports IC 13.56MHz [LED warning light / Buzzer] LED reminder light is red in standby mode, green light is in card reading mode, and a built-in buzzer is provided for convenient and effective reminders. [Lightweight and easy to use] High-quality flame retardant material shell, small size and slim, high-quality electronic chip control inside, sound effect reading. [Efficient high-speed USB] 1.2 meters long USB transmission line connected to the device, respond immediately, no need to install any driver, quickly read the card number. [Download the software] When you connect this product to a computer, you can find the software on the computer. Supports working mode: reading/writing/duplication/RFID card decoding/encrypted card cracking Supported card type: Only supports IC 13.56MHz. Working method: Connect to computer via USB cable Size: 108 x 68 x 12mm (L/W/H) Color: black+blue+white Material: plastic Package Contents: 1 x RFID Copier 10 x UID Keyfobs 13.56MHz 10 x T5577 13.56MHz Card 1 x USB Cable The above package only, other products are not included. Note: Light reflection and different displays may cause the color of the item to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.