Note: Our card reader has limited applicability and cannot match all types of FRID cards. Built-in buzzer and LED. Reading distance is 0-6 cm (0-24 inches). Compatible with most 125KHz RFID cards. Support EM4100ID card, 5200 card, AWID card, EM4305 card, T5577 card and some types of HID cards. Does not support 1356MHzIC card or UHF, UID card, HIDiCIass, HIDPr0xCardII, HIDPr0xKeyIII. Handheld design. Comfortable in hand, powered by 2 AAA batteries, easy to use and carry. (Battery series not included) Widely used in homes, communities, schools, offices, hotels, elevators and any other places that require security monitoring or access control support. Color: Blue Material: Plastic Package Contents: 1 * RFIDID Writer 10 * EM4305 Writable Cards Only the above package contents, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowable error is +/-1-3 cm.