Wittner Taktell QUARTZ QM2 Metronome- Black.
Wittner QM2 metrnomes features 40-208 bpm and 39 tempo selections. Loud clicking sounds. The LED beat indication can be configured to sounds and light or light only. The physical dial-type tempo selection allows very quick and accurate selection. Generates A440 for tuning. Powered by 9V battery. Supplied with earphone.