The Casio GP310 Grand Hybrid Digital Piano, with Sennheiser headphones is a perfect way to achieve an incredible playing experience. Included with package are the Casio GP-310 Grand Hybrid digital piano and the Sennheiser HD 560S headphones. The GP-310 features a multitude if quality sounds, and has been created together with world-renowned grand piano builders C. Bechstein, it delivers an experience you can't mistake. The GP310 actually uses a full grand piano action mechanism for enhanced realism. But this isn't just a gimmick - this is the exact feel of a grand piano. By lifting the lid, you even see the hammers in motion. The drive for excellence is apparent all over the GP310. The all essential sound. The sound is inherited from three of the finest pianos on earth. Derived from grand pianos from Berlin, Hamburg, and Vienna, in each one you'll hear the dedication to achieving an impeccable sound.