88 fullrange keys with stepbystep force weighting 88 keys spanning bass to treble with stepbystep force weighting for a realistic key feel. Progressive weighting from low to keys reproduces the sinking depth and rebound strength associated with grand piano keys. Clear, immersive sound Dual stereo speakers with 3D surround processing deliver fuller, more detailed piano tone and better spatial presence for practice and small performance settings. Sound quality tuned for teaching and performance applications, providing clean, accurate timbres. Extensive voices and rhythms 129 timbres and 128 rhythms provide a wide palette of sounds and accompaniment options. Suitable for varied musical styles without repetitive or artificial tone. Portable, precise controls Chiseled, portable form factor designed for easy transport and placement. The control surface allows smooth, precise clicking and pointing on most surfaces, making operation quick and reliable. Key benefits and problem solving Realistic touch and response make technical practice more effective by matching weighted key dynamics. Builtin stereo speakers and 3D surround reduce the need for external amplification for home practice and smallgroup use. Large selection of timbres and rhythms supports diverse repertoire and teaching exercises, reducing the need for additional sound modules. Function, compatibility, size, material, and performance Function: full 88key piano with weighted key feel, onboard stereo speakers, multiple timbres and rhythms. Compatibility: designed for classroom, studio practice, and small performance contexts. Size and portability: compact, chiseled design for easier transport and setup. Material and build: robust portable housing and precise control surface for reliable daily use. Performance: responsive key action and detailed stereo sound for realistic playing and teachinglevel audio quality. Use scenarios Music lessons: provides authentic key response and varied timbres for structured teaching and student progression. Home practice: compact speakers and realistic touch let players rehearse without external equipment. Small rehearsals or classroom use: quick setup, portable form, and builtin rhythms support ensemble practice and accompaniment. This instrument combines realistic weighted key feel, detailed stereo sound, and flexible timbral options in a portable format suitable for teaching, practice, and small performance environments.