Brand: Cherub Model: WST-920 Chromatic tuner with an 8-octave detection range E0 (20.60 Hz) – C8 (4186 Hz) that supports band and orchestra instruments. Transposition Broad range of A4 calibration: 349 - 499Hz (1Hz steps) Built-in mic supports acoustic instruments, Instrument Input Dual display: Classic needle type tuner + backlit LCD Multiple Temperaments support historical tunings: 12 Equal tempered, Pythagorean, Mean tone E♭ / D♯ , Werckmeister III (WRK), Kirnberger III(KRN), Kellner (KLN), Vallotti (VAL),Young (YNG) Drop Tuning function SPECIFICATIONS Brand: Cherub Model:WST-920 Color: Black Type: Universal Tuner Tuning Range: E0(20.60Hz)-D8(4699Hz) Tuning Modes: Auto(E0-C6), Auto-Hi(E2-D8), Manual(E0-D8), Sound Cue(C2-C7), Sound on Sound Flat: none, b, bb, bbb, bbbb Reference Frequency: A4=400-499Hz (1Hz steps) Temperament Key (Transposition Range): C C# D D# E F F# G G# A A# B Detection accuracy: 0.1 cent Numeric Display Resolution: 1 cent Meter Display Resolution: 0.25 cent (FINE mode) Sound Accuracy: 0.1 cent Standard Tone: C2(65.41Hz)-C7(2093Hz) Temperaments: Equal tone(EQU), Pythagorean(PYG), Mean Tone Eb(MTE), Mean Tone D#(MTD), WercKmeister III(WRK), Kellner(KLN), Valotti(VAL), Young(YNG), KirnbergerII (KRN) Input: 6.3mm (1/4") Mono Output: 6.3mm (1/4") Mono Power: DC 9V (AC Adapter) or 3V (2 x 1.5V AAA batteries) (not included) Item size: 14.5 x 5.5 x 2.5 cm / 5.7 x 2.2 x 1inches Item weight: 155g / 5.5oz Package size: 20 x 6.5 x 3.5 cm / 7.9 x 2.6 x 1.4 inches Package weight: 174g / 6.1oz FEATURES This universal tuner is a great helper to keep your instrument in tune. With Auto, Auto-Hi, Manual, Sound Cue and Sound on Sound tuning modes. Tuning of virtually any instrument to 9 classical temperaments: EQU, PYG, MTE, MTD, WRK, KLN, VAL, YNG, and KRN. Two LCDs and one encoder wheel for more accurate calibration. LCDs with backlit provide excellent visibility. With input and output jack. Built-in microphone can tune without the connection of the pickup. With an groove for coin to stand the tuner up. Auto shut-off: if there is no signal for 5 minutes, the tuner shuts off. Auto save functions: settings are saved upon power off. Powered by DC 9V or 3V (2 * 1.5V AAA batteries) (not included) Tuning Accuracy Indicator: Sharp: The needle moves to the right side, and the "#" indicator will light; Flat: The needle moves to the left side, and the "b" indicator will light; In-tune: The needle moves to the middle, and the "△" indicator will light. Sound Cue Mode: It will give a standard tone after it detects any tone which is close to the standard tone. Sound on Sound Mode: Out of tune: There is a rapid tone and the "#" & "b" will flash quickly Approaching the correct pitch: The tone and the flashes will slow. In tune: A steady tone and the "△" will light. Brand No Brand SKU OT776EL10XH6SNAFAMZ-283201 Model WST-920