Smart metronome with vibration function, perfect for practice. - Brand: Soundbrenner - Model Name: Pulse - Included: Bands (black, long and short) - Function: Vibration metronome - Charging method: USB charging - Used only a few times, with box Thank you for viewing. I am selling this because it didn't suit me. The main unit is also clean with no scratches or stains. We look forward to your purchase. ~~~ - A wearable device that conveys the beat through strong vibrations. - You can feel the tempo through vibrations, instead of the unpleasant clicking sound of a traditional metronome. - Can be worn on various parts of the body, such as the wrist, arm, or ankle. - Connects via Bluetooth 4.0, and you can customize the tempo, time signature, etc. with the app. - Can sync with up to 5 devices, allowing multiple musicians to share the same beat.