The Williams Allegro III 88-Key Digital Piano AC Adapter Charger Power Supply is a high-quality power supply designed specifically for beginners. With 88 weighted keys and velocity touch sensitivity, this digital piano offers an authentic playing experience. The built-in speaker, along with the included pedal, enhances the overall functionality of this black plastic piano. Perfect for home use, this instrument provides a realistic feel and sound for aspiring musicians looking to practice and learn.