Makeblock is an open source construction platform that turns your ideas into reality. No matter what your idea is and however impossible it looks like. What's mBot Ranger?mBot Ranger Coding Robot Kit is a three-in-one STEM educational robot kit toy which supports 3 building forms: robot tank, three-wheeled racing car, and a self-balance car. Program & Remote Control mBot Ranger via iPad, tablets, or laptop to start your exploration! Off-Road Land RaiderBeing an off-road robot tank, Land Raider is designed to handle a wider variety of terrain than most other vehicles or robot car. Dashing Raptor, the PredatorTransform your Land Raider easily, turning it into Dashing Raptor, which is a three-wheeled racing car that runs/spins fast like a raptor which eagers to catch its game. Self-Balance Nervous BirdA smart self-balance car which remains level when driving straight or standing still and leans at an angle when making turns. Modules in this kit all equipped with RJ25 ports for easy wiring. Just by connecting the modules together, robots can be built in a really quick way. All the wiring is simple and very clean. Specifications: Software and programming: PC-mBlock; iPad/Tablet-Makeblock. Arduino IDEMain Control Board: Arduino Mega 2560, 256KB flash memory, 8KG SRAM, 4KB EEPROMSensor: 2 x Light sensor; 1 x Sound sensor; 1 x Gyroscope; 1 x Temperature sensor; 1 x Ultrasonic sensor; 1 x Line followerSpeaker: 1 x BuzzerBattery: 6 x AA battery(not included)Motor: 2 x 400 RPM Encoder MotorWireless Communication: Bluetooth/2. 4GDimensions: 200 x 165 x 120mm (7. 78x6. 49x4. 71 inch) MaxWeight: 1600g (56. 44oz)