Red LED flashes visual beat. Speaker ticks for aural beat indication. 440 hz. (A4) tone generated for tuning. 3 way switch for sound w/Light/Off/Light only. Ear phone jack with ear phone included for private listening. MORE»
| List | $35.99 |
Audible/visual or visual beat only. Variable speeds from 35-250 beats. MORE»
| List | $30.99 |