Easy to operate digital keyboard with 54 keys, 100 excellent sounds, 100 rhythms, sustain and vibrato effects, with built-in vocal amplifier, including microphone, with many recording and other options. In perfect condition, as good as new, technically and mechanically everything 100% good (***), in the original box and complete with adapter, microphone and clear manual (pdf). Features: Brand: Acoustic Solutions Type: MK-2054 No. of keys: 54 Keys (piano-size) Touch Sensitivity: No Display: LED Display Sounds/Rhythms/Other: 100 Timbres / 100 Rhythms / 8 Percussions Demo's: 8 Demonstration Songs / Demo One / Demo All Control: Master & Accom Volume Control Effects: Vibrato / Sustain Automatic accompaniment Buttons: Start/Stop / Sync / Fill-In / Tempo Control Automatic accompaniment Switch: Single Finger / Fingered Chord Ensemble: One Key / Ensemble Programming: Rhythm Programming Function Sequencer: Record & Playback Speakers: Speaker Output Headphones Connection: 3.5 mm stereo mini-jack Other Connections: Microphone (Included) Product Dimensions: 755 x 289 x 92mm Product Weight: 2.4 kg. Power Supply: 6AA Batteries (Not Included) / AC Adaptor (Included) *** when you press too many keys at once (approx. 6-10 keys), the keys sometimes plays a creative different set of tones from what you played! This is not a malfunction, but one of the unique characteristics. Will be packaged very carefully and sent by insured mail - Extra low shipping costs - 2nd item free shipping