Description ?Specifications? Metronome Mode ?Tempo Range: 30 to 252 beats per minute ?Tempo Setting: Pendulum Step, Full Step, Tap Tempo ?Time Signature Range: 19 types (0?9/16, 2-note triplets, 3-note triplets, open 3-note triplets, 4-note triplets, open 4-note triplets, Son Clave 2-3/3-2, Rumba Clave 2-3/3-2) ?Tempo Accuracy: 0.2% Sound Out Mode ?Reference Tuning Tone: C4 (261.63Hz) to B4 (493.88Hz) 1 octave ?Calibration Range: A4=410 to 480Hz (1Hz increments) ?Reference Tone Accuracy: Within 1 cent Key Specifications ?Connection Terminal: PHONES terminal (3.5mm stereo mini jack) ?Speaker: Dynamic speaker (?36mm) ?Power Supply: 4 AAA batteries (alkaline batteries, nickel-metal hydride rechargeable batteries) ?Battery Life: Approx. 120 hours (Tempo 120, 4/4 time, mechanical metronome, maximum volume, using alkaline batteries) ?Dimensions: 60(W) x 73(D) x 113(H) mm ?Weight: 167g (including batteries) ?Accessories: AA batteries for operation check (4 included) Shipping Express shipping We can ship the item together. Please check the shop as there are various other products. go to our shop Most of the items will be delivered in 2-4 weeks after it shipped out. We will carefully deliver using the packing material. About Us -----Important----- Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer?s responsibility. Please check with your country?s customs office to determine what these additional costs will be prior to bidding or buying. Customs fees are normally charged by the shipping company or collected when you pick the item up.These fees are not additional shipping charges. We won't under-value merchandise or mark the item as a gift on customs forms.Doing that is against U.S.and international laws.