เครื่องช่วยสอนคอร์ดกีต้าร์,ตั้งสายและให้จังหวะสำหรับผู้เริ่มต้นและมืออาชีพราครวมค่าจัดส่งแล้วครับDescription: 4 in 1 guitar chord grid with powerful function, easy to operate. It includes 372 guitar chord charts With the input and separate volume control on metronome, suitable to teach beginners with the mixed metronome Tap Tempo makes it faster to adjust the speed of beat Automatic back-up functions and 6.35mm guitar signal output Economically friendly, USB rechargeable lithium battery Specification: Tuning range: A0 (27.5Hz) ~C8 (4,186.0Hz) Tuning mode: comatic, guitar Tuning precision: ±1 cent A4 range: 430~450Hz Tempo: 30~250bpm Metronome sound: human voice, tick tok, and cowbell Power: built in lithium battery(3V/850mAH) Material: plastic+metal Size Chart: Approx. 119 x 72 x 17mm/4.68 x 2.83 x 0.66inch Package Includes: 1 Piece Guitar Chord Table