Card reading method: EM Card reading power consumption: <1mA Card reading reaction time: <0.2 seconds Operating temperature range:-20°C-70°C Total storage: 80000 Operating humidity range: 30%-95% Instruction method: LED + vibration Operating energy consumption: <80mA Saveable wrest records: 32,000 Use battery: 3.7V900mA lithium battery Communication mode: contact communication or USB communication Size: 176mm*Φ28mm Porter rate 19200Bps Weight 210g