A. Attention: The applicability of this product is limited and it may not be adapted to all types of RFID cards. 1. It is equipped with a buzzer and an LED indicator. The reading distance is approximately 0 - 6 cm (0 - 2.4 inches). 2. It is suitable for 125KHz RFID cards, supporting EM4100 ID cards, 5200 cards, AWID cards, EM4305 cards, T5577 cards and some types of HID cards. It does not support 13.56MHz IC cards, UHF cards, UID cards, HID iClass cards, HID ProxCard II cards and HID ProxKey III cards. 3. It adopts a handheld shape design with a comfortable grip and is powered by 2 AAA batteries (batteries are not included in the package), which is convenient for operation and carrying. 4. It is widely used in homes, communities, schools, offices, hotels, elevators and any places that require security monitoring or access control support. B. Color: Blue C. Material: Plastic D. Package contents: 1. 1 RFID ID card writer 2. 10 writable EM4305 cards Note: Only the above package contents are included, and other products are not included. Attention: Light and different displays may cause the color of the item in the picture to be slightly different from the actual object. The allowable measurement error is approximately +/- 1 - 3 cm.