1. Multi-purpose function: Obstacle avoidance, following, IR remote control, Bluetooth control, confined with a circle as well as facial emoticons display.2. Simple assembly: No soldering circuit required, simple assembly.3. Sturdy construction: 4WD construction, 4 premium motors, and wheels.4. High extension: It can expand other sensors and modules via a motor driver expansion board5. Multiple controls: IR remote control, App control (iOS system). Basic programming: C language code of IDE.Working voltage: 5VInput voltage: 6-9VMaximum output current: 2AMaximum dissipation: 25W (=75)Motor speed: 5V 200 rpmMotor drive mode: DRV8833 motor driverUltrasonic induction angle: Less than 15 degreesUltrasonic detection distance: 2cm-400cmInfrared remote control distance: 10M (measured)Bluetooth remote control distance: 50M(measured)Bluetooth control: support iOS systemCondition: NewType: Voltage RegulatorModel Number: Smart Robot Car Kit For R3Application: Electric ToyFeature 1: smart robot car kit for Feature 2: for Car KitFeature 3: Robotics Educational KitsFeature 4: for ProjectFeature 5: Robot ProgrammableModel: ZYC0039color:Photo colorMaterial:plasticPackage Contents:1 x Smart Robot Car kitOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.