1k IC Card 13.56 MHz | NFC Card 13.56 MHz ISO 14443A RC522 Card SPECIFICATIONS:  Memory: 1 Kbyte (1024 x 8-bit EEPROM memory) Communication baud rate: 106 Kbit/s Read range: 1–10 cm -Operating Frequency: IC CARD 13.56 MHz -Common Usage: Ticketing, contactless smart card with excellent security -Tested Read Range: 2.5–10 cm (1–4 in.) -Multi-Detection: Yes -Size: 86 x 54 x 0.8 mm -Material: PVC -Color: White -Weight: 5 g – GRADE A Operating Specifications: -Waterproof and dustproof -Resistant to immersion in saltwater, alcohol, oil, 10% HCl, and ammonia -Shock resistance depends on packaging -Vibration resistance depends on packaging -Storage Temperature: 40°C to +85°C -Operating Temperature: -25°C to +70°C