The perfect training partner for ambitiouse runners. Features include: ECG accurate, digitally coded wireless tranmission using Bluetooth SMART, Compatible with SIGMA MOVE, speed/dist indicator, music control, voice coach, configurable phase training, current/avg/max heart rate, lap counter, favorites function, best lap indicator, easy lap view, calorie counter, intensity zones, heart rate graph, zone alarm/indicator, zoom function, 260 h log capacity, alarm clock, my name function, button lock, low bat indicator, full text display with 5 languages, backlit display, silicone wrist strap, wireless data transmission vis Sigma dongle, watertight. Package includes R1 Blue comfortex+, Sigma wireless dongle, and data center. Have you done enough exercise today ACTIVO will let you know! With its chic, slender, two-tone wrist strap, the ACTIVO's clearly legible display provides precise information. It shows how many steps you have taken, how far you have moved, and how many calories you have burned. Above all, it shows the activity level of the day and uses Bluetooth Smart to transmit all of the statistics to a smartphone and the free SIGMA ACTIV app.