● Current/average heart rate Target zone programming Audible and visual alarm for high/low target zone with one-touch button for OFF mode Out of zone visual display arrow Calculates total fat calories burned Large easy-to-read LCD digital display Interfaces with heart rate interactive exercise equipment Wireless ECG accurate Time of day (12 hour/24 hour) Date (day/month/year) Stopwatch # Waterproof for all water sports State-of-the-art attractive wristwatch design Comfortable ultra-slim ergonomic elastic chest belt transmitter Includes easy-to-use manual Requires two CR2032 batteries (included)