1) Operating Frequency: 125KHz, 13.56MHz
2) Operating Temperature:-40º C to +70º C
3) Data Maintenance:10years,EMS memory can be wiped or written over 100K times
4) Read and Write Range: 1cm to 10cm
5) 125KHZ Chip:EM4100, Hitag-1, Hitag- 2, Hitag-S, TK4100 
6) 13.56MHz Chip: Mifare-One S50, Mifare-One S70, I-CODE, Ti 256, INSIDE 2K 
7) Diameter: 18mm