LEGO Mindstorms Education EV3 Core Set, product number 45544. New in sealed box, never opened. Excellent gift for a smart child. This is an education version: https://education.lego.com/en-us/products/lego-mindstorms-education-ev3-core-set-by-lego-education/5003400 You cannot get it from retail stores. In Canada you can get it only from several education suppliers like Spectrum: https://spectrum-nasco.ca/product.htm?Product=2110M&Source=Cart $487.90 + tax + shipment = $550 + shipment From retail stores you can get only Home Edition (31313) of the robot: https://www.mastermindtoys.com/2281-LEGO-Mindstorms-EV3.aspx for $399.95 + tax = $451.94 Education version includes components that are not available in the Home Edition: - A special EV3 Rechargeable DC Battery: https://www.lego.com/en-ca/product/ev3-rechargeable-dc-battery-45501 and charger: https://www.lego.com/en-ca/product/transformer-10v-dc-45517 Value: $94.99 + $35.99 + tax. The battery can be charged while robot is being programmed or is working. Regular rechargeable AA batteries don't work in that way. With EV3 Rechargeable DC Battery your child doesn't need to take apart the robot to change batteries. - Ultrasonic sensor: https://www.lego.com/en-ca/product/ev3-ultrasonic-sensor-45504 instead of Infrared one. Ultrasonic sensor is more accurate than Infrared. - Gyro sensor: https://www.lego.com/en-ca/product/ev3-gyro-sensor-45505 Value: $35.99 + tax - Convenient plastic box to keep parts organized. Reason for sale - this is an extra set that we currently don't need. FAQ: Is this still available? - Yes, it is available. What is the lowest price you can take? - I think $400 is a fair price. If you have seen such new set for less, please send me a link.