• A sensor built into the device measures your heart rate, step count, location, and other types of data. You can also hear voice updates on your pacing, mileage, etc., and base your training on this information.
• You can even train with just the device, without carrying your smartphone, thus allowing you to focus on lightweight training.
• The “B-Trainer” app manages a record of your training data, so you can plan an effective training regimen and achieve your goals without any wasted effort.
• You can also use the device as a normal digital music player, and can answer calls from your smartphone via Bluetooth connection.

This Help Guide explains the capabilities of this device by itself and in conjunction with the “B-Trainer” app.