Features: brand new and brand new and The latest design watch-style metronome, portable design, intelligent interconnection. Built-in drum machine mode, vibration rhythm, light reminder, sound reminder, can connect multiple metronome, set the band mode. Light and , long battery life can be up to 25 days , 3 hours of continuous beat vibration, the same motor of the spacecraft. Strong vibration, quieter, not disturbing others, free rhythm. Support Bluetooth-compatible link, suitable for a variety of musical instruments. Specifications: Material：Metal Length：27cm/10.62in Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1x Metronome, 1x Charging Cable, 1x Manual .