Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Everything I needed and more

Excellent product. My first HRM and I am more than satisfied. It has really helped my training as I was kind of a naysayer to these before I got one. Between checking my pulse manually and when on cardio equipment, I have found it to be spot on 90% of the time with a variance of +/- 1-3 BPM the rest of the time. Highly recommended especially for fist time users. Can also be used with GPS, purchased separately, if desired.