This is the larger of the two stun guns we have available for sale. This is the 200,000 volt unit. Two separate power switches to prevent accidental discharges. Unit requires two nine volt batteries for operation (not included), the unit will function on one battery but you will lose power. Measures 5.25" x 2.4" x 1.25" wide. Weighs 6.4 ounces without the batteries. Lanyard and belt clip are not removable. Not legal in all areas. Check local laws/ordinances before ordering. Cannot be carried on an airplane or other commercial vessels. Available in 100,000 Volts (DBA-360), 200,000 Volts (DBA-365), 350,000 Volts (DBA-362), 600,000 Volts (DBA-361, and 800,000 Volts (DBA-363). Not legal to own, sell or ship to any resident in the District of Columbia, Illinois, Dennison, Iowa; Hawaii, Massachusetts, Michigan, New Jersey, New York, Philadelphia, PA; Portland, OR.; Rhode Island, St. Paul, MN.; Wisconsin, or Maryland.