Able to use without battery, good for shooting at home. Very nice if you dont
You have to have an external power source, cannot use at the field.
Nice product, Good if your battery is dead, or if you dont have a battery. The only downside (which isn't really a down side is it only works in places with an external power source. Good for tuning your gun with out wasting your battery, or if you dont hae the time to charge it.
Very good product, well made
10 out of 10
Last edited on Sunday, November 16th, 2008 at 9:13 am PST