Digital Metronome Volume & Beat Speed Adjustable Electronic Metronome with Timer for Guitar Piano Violin Saxophone Etc

Good luck with your favorite purchasesIs Batteries Included : Yes High-concerned chemical : None Brand Name : Shunmaii Origin : Mainland China Digital Metronome : Electronic Metronome Origin : Mainland China Size : 14.06*6.93*4.46cm Power supply : 3x AAA batteries (not included) /Type-C Charging Beat speed : 40-208 beats/minute Timer settings : 15min, 30min, 45min, 60min