Colour: Authentic gold, steel wire drawing, red bronze, curry red antique
Power supply: 4.5V-6.5V (four alkaline batteries)
Typical static current: <20 microamperes (battery life can exceed one year)
Working current: 150 mA (strong driving capability)
Type of card: Mifare one
Working temperature: - 20 C ~ 60 C
Relative humidity: 20%~93%