Description Feature: # Rechargeable, aluminum shell # Display: 3-digits Red LED # Dimension:46 x 46 x 29 mm (LxWxH) # Resistance measurement range: 0-20 ohms # Voltage measurement range: 0 to 12 volts # Micro-USB charging port # Accurate: 0.01V # Input voltage: DC 5V # Built-in 350mAh rechargeable battery # Estimated standby time: 36hours # Charging Time: 25 Minutes (cable or computer charging used) Package includes: 1x Ohm meter 1x USB charger