1. rfid uhf card 2. working frequency: 915mhz 3. CR80 Size or customized 4. Card surface:blank card with jet dot mifare rfid card key features ... optionsContactless chip:LF/HF/UHFContact chip:4442/4428,24C02/24C08/24C1/24C32/24C64, AT88SC102/88SC1604/88SC153,45DB041,CPU card (COS), etc. ... : *LF(T5577,ID,TK4100,EM4200,EM4305,NXP Hitag series ,etc) *HF:Mifare S50,S70,Mifare plus 2k x edition,4k X ...