Zumo Robot Kit for Arduino, v1.2 (No Motors) Note: This product is a kit assembly (including soldering) is required. Motors, batteries, and Arduino are sold separately. An assembled version is available that does not require any assembly or soldering and includes motors and a Zumo reflectance sensor array. Kit Contents One Zumo Shield for Arduino, v1.2 One Zumo chassis kit One Zumo blade Contents of the Zumo robot kit for Arduino, v1.2. Please see the specific pages for those products for more information about them, assembly instructions, and links to related resources. The only difference between this and the previous Zumo Robot kit version is the inclusion of a v1.2 Zumo shield in place of the previous shield version. The only changes to the shield are an upgrade of the integrated accelerometer/magnetometer IC and the addition of a 3-axis gyroscope.Zumo Robot for Arduino, v1.2. Zumo chassis being assembled with two micro metal gearmotors. Required Accessories (not included) Two micro metal gearmotors. These gearmotors are available in several power options and a wide variety of gear ratios, allowing for a customizable combination of torque and speed. The Zumo Shield can deliver enough power for all of the micro metal gearmotors we carry, including the high-power (HP) versions. Note that some gear ratios are better suited for the Zumo than others please see the Zumo chassis kit product page for specific motor suggestions. Four AA batteries. The Zumo chassis works with both alkaline and NiMH batteries, though we recommend rechargeable NiMH cells. An Arduino. The Zumo Shield works with both the Uno and the Leonardo. It is not