Bulk Buy High Frequency MF 1k RFID Hotel Key Cards are 13.56MHz mifare 1k chip and encrypt with locks authorization ,It is specializing in working for hotel rfid locks and fully working with hotel lock system and can help hotel owner quick to finish check in and check out , power on , elevator control ,etc .Customized printing , numbering , barcode , mag strip , die-cut shape or hole and hoht-stamping are available .