Features: This hands on assembly wooden electronic piano model combines STEM learning with creative fun, offering hands on assembly experience while teaching basic physics principles through its functional electronic sound. Crafted from wood with safe, this educational science toy set features components and requires 2 batteries (not included) to power its working piano keys and panotron experiment functions. Ideal for teenagers and kids aged 8+ interested in science exploration, it serves as educational STEM project for parent and educators to nurture logical thinking in developing minds. Perfect for workshops, classroom physics demonstrations, or after school STEM clubs where student and children assemble functional musical instruments while understanding circuitry concepts. The reusable wooden construction ensures long term educational value, making it both engaging motor skills development tool and interactive introduction to electronic engineering fundamentals. Specifications: Component: Wood Color: Wood Color Size: Approx. 154x110x90mm/6.06x4.33x3.54in Weight: Approx. 210g Package Includes: 1Set Hands on Wooden Electronic Keyboard Model AA batteries (not included) note: 1. Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color