THERE IS NOTHING MORE ANNOYING THEN HAVE TO CONTINUALLY CHECK YOUR WATCH AND HEART RATE MONITOR WHILE YOU ARE WORKING OUT AT YOUR MAXIMUM HEART RATE!
The gymboss inteval timer is a nifty little gadget which I have been using for a few months now in my interval training routines.
Basically what it does it beeps, vibrates or sets off an alarm after a specified duration – so you know when to change sets in your tabata, HIIT or fartlek routines!
As simple as the gymboss is, it makes so much difference in your workouts.
