Jurisdiction Statement: BeatInfo Transmitter and its app, BeatInfo Health, have received regulatory clearance from Taiwan FDA as non-medical device, can be used in the following regions and countries: Taiwan. We know, by Heart. The only thing you watch is your heart. 1. Seamless heart rate – tracking every single cardiac contraction via a high sampling rate recording technology. 2. Calorie consumption – a quick and easy way to calculate energy burnt on daily life and each workout, helping on each diet and weight control. 3. HRV – an index telling your mental anxiety and stress level. *Beatinfo Transmitter is mandatory accessary *Measuring environment temperature Disclaimer: The Beatinfo Health is not for medical use. Please consult your doctor for further diagnosis and treatment before making any medical decisions.