It also features several microphones, lights, and an array of other sensors. The MarkV-A1 can be operated via one of the three following methods: Fiber optic cable – deployed from the vehicle Wireless radio control Hard tether cable The MarkV weighs approximately 800 pounds with only its standard features, and its extendable camera can reach up to 6 feet in the air. Mobility Due to its size, the MarkV-A1's top speed is only 3.5 mph, but speed is not a necessity for a bomb disposal robot. It can, however travel up inclines to about 45 degrees, and has the capability to ascend and descend staircases. The tread system is designed to traverse difficult terrain and the quick-release wheels and tracks allow it to be highly versatile, giving it the ability to clear openings down to 24" and obstacles up to 16" tall, as well as mud and ditches. Accessories Oftentimes first responders, such as EOD, SWAT, law enforcement or HazMat, need specific accessories that apply to a certain mission. Northrop Grumman provides several accessories that can be mounted onto the MarkV-A1 before a mission. The following are some notable accessories: Laser assembly - Helps with aim Fiber optic cable reel - This is one method of controlling the MarkV-A1. Useful if radio signals are being interrupted. The cable can extend to 2000 feet. Camera/Pan tilt assembly - Adds to the capability of the main camera including 360 degree rotation and better depth perception Headset assembly - This allows the operator to receive audio feedback from the robot. Shotgun - The MarkV-A1 can be mounted with either a modified 12 gauge Franchi 612 for use as an entry or breaching tool, as well as the Striker 12 shotgun for delivering non-lethal shots SL6 mount assembly - Used in conjunction with L6 or L8 grenade launcher Claw assembly - Extends the gripper opening by 2 inches Window breaker assembly - Delivers a spring-loaded punch with an aluminum block Cordless circular saw assembly - Circular saw with its own power supply held in gripper. Cordless drill assembly - Drill held in gripper Cable cutter assembly - For heavy duty cables, attached to the gripper fingers Operators Uruguayan Army Bomb Squad Israel Defense Forces Toronto Police Service Emergency Task Force (TPS) LAPD Bomb Squad United States Army Dallas Police Department See also DRDO Daksh Wheelbarrow (EOD) Remotec Andros F6B Remotec HD-1 Remotec Mini-Andors II