Item NO : VM331501Label Size : 35X35Antenna materail : Aluminium Substrate material: PET Antenna thickness of 0.04mmSubstrate thickness : 0.08mm Packing : roll/unit/sheet Chip no : Mifare 1K (S50)/ Mifare 4K (S70)/ Mifare ultralight/ I-Code SLI.... Frenquency:15.0+/-0.5MHzR/W distance:4CM