Automatic frequency detection. LED status indicator light. Built-in hf low frequency antenna. IC/ID integrated reader voice broadcast function. Voice broadcast card number and encryption status. IC/ID smart card reader conforms to IC/ID standard. Support EM4305,5200,8800,T5577,F08,UID. Support class A and class B CARDS conforming to ISO 14443 standard. Size: 11 x 4.6 x 2cm/4.3 x 1.8 x 0.8in Sensor Distance: 6cm Reading Time: 0.1s Reading Distance: 2.5cm-10cm Battery: 2*AAA(Not Included) Operating Temperature: 0-50°C Material: ABS colour: White Package Contents: 1 x RFID Card Duplicator Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.