DB-90: Dr. Beat Metronome Tempo: 30-250 (Accuracy: ±0.1%) BEAT: (BEAT1) 1–9, (BEAT2) OFF/1–9 PATTERN: 8-BEAT x 4, 16-BEAT x 3, SHUFFLE x 3, FUNK x 2, JAZZ x 2, BLUES, TECHNO, HOUSE, COUNTRY, REGGAE, CLAVE 3-2, CLAVE 2-3, SALSA, RUMBA, BOSSA NOVA, SAMBA, WALTZ, TANGO, MAMBO, CHACHACHA, MARCH (30 kinds) RHYTHM COACH Time Check, Quiet Count, Gradual Up/Down, Step Up/Down Reference Tone Reference Pitch: A4=438 Hz-445 Hz (1 Hz steps) Reference Tone Range: C2-B6 (5 octave, 12 semitone) Memory Metronome: 50 Reference Tone: 10 Auto Power Off function Turns unit off after 60 min Indicators LCD Display, Tempo Indicator LED x 2 Connectors TRIG IN jack START/STOP jack MEMORY UP/DOWN jack MIDI IN connector PHONES jack x 2 (Stereo 1/4" phone type, Stereo miniature phone type) INPUT jack AC ADAPTOR jack Power Supply DC-9V: Dry Battery (6LR61/9V, 6AM6/9V) or AC adaptor (PSA series) Current Draw 85 mA (max.)AccessoriesDry Battery Soft case Owner’s Manual Size and Weight ( incl. battery ) Width 122 mm4-13/16 inches Depth 164 mm6-1/2 inches Height 38 mm1-1/2 inches Weight 0.5 kg1 lbs.