MAXCOM CO., LTD. is a maker and exporter of;
1.PowerTank
    - Portable power supply & engine booster
    - Auxiliary power for Jump start auto or mini boat battery
    -You need power for outside activities, camping or fishing or outdoor party or electricity cut-off, etc.
    -2 way rechargeable (from AC and DC), AC adaptor included,
    -Sealed Lead Acid rechargeable 12V 12Ah battery, 12V Cigarette socket

2. Power Cap
    ?12V DC to AC Inverter, 150W
    - Generating AC power from Car or PowerTank

3. Digital multimeter
    -Wide range of measuring
    -DC/AC Voltage, Current, Resistance, Capacitance, Diode test, Frequency, and so on.

Just contact us or visit our homepage, www.ec21.com/maxcom and check us out.
Many thanks.