KEYESTUDIO mini smart turtle car KS4024, for Micrο:bit STEM. The Micrο:bit mini smart turtle car kit from Keyestudio allows you to build your own smart robotic car through the completion of many creative projects. It features line tracking, ultrasonic following, obstacle avoidance, and can be controlled wirelessly by an IR remote or a smartphone app via Bluetooth. Additionally, it works with a passive buzzer with music playback function and has 4x WS2812RGB LEDs and 2x RGB lights. Control from a smartphone is done through the Keyes Bit Car app for Android and iOS. -Line tracking, ultrasonic following, and obstacle avoidance functions -Control via wireless IR remote and smartphone via Bluetooth -With a passive buzzer with music playback function -Learn coding through Makecode.