Item: 45025 Ages: 2+ Years Pieces: 234Inspire early learners to explore early coding concepts such as sequencing, looping and conditional coding, while developing problem solving skills, critical thinking, collaboration and social and emotional skills.
Item: 8878 Ages:7+ Pieces:1Charge up your LEGO® Power Functions!No more disposable batteries! This rechargeable battery box has built-in Lithium polymer batteries for low weight and maximum power. Use it in your LEGO® Power Functions models and never have to use disposable batteries again!
Item: 9843 Ages:8+ Pieces:1Your robot's "fingers!"The Touch Sensor reacts to touch and release, enabling your LEGO® MINDSTORMS® NXT robotic creation to "feel" like never before! It can detect single or multiple button presses, and reports back to the NXT Intelligent Brick (sold separately.)
Item: 9844 Ages:8+ Pieces:1Detect light intensity!The Light Sensor assists in helping your robot to "see." Using the NXT Brick (sold separately), it enables your robot to distinguish between light and dark, as well as determine the light intensity in a room or the light intensity of different colors.
Item: 9845 Ages:8+Pieces:1Your robot's "ears!"Using the NXT Brick (sold separately), the Sound Sensor allows your LEGO® MINDSTORMS® NXT robot to hear! The Sound Sensor is able to measure noise levels in both dB (decibels) and dBA (frequencies around 3–6 kHz where the human ear is most sensitive).