Brand N/A Model V55 Quantity 1 Color Green Material PCB + plasic + copper Features Compatible with Arduino Comes with LED indicator buzzer coil and ID card; simple operation Specification Working voltage: 3.5-5V; Working current: <36mA; Frequency: 125KHz; Baud rate: 9600; Interface Type: TTL level RS232 format; Reception range: 30mm~50mm; Easy operation Application Suitable for access control time and attendance charges anti-theft Patrol and other radio frequency identification applications English Manual/Spec Yes Packing List 1 x Card reader module 1 x Buzzer 1 x EM4100 ID card 1 x Copper coil Manual: www.vecees.com/user manual/0113072813055089.zip