24 HOURS MONITORING - This monitor allows you to record your condition for 24 hours constantly,PRO AI ANALYSIS - The AI analysis support to identify 16 categories, and the AI database contains 50 million accurately labeled data fragments from 300,000 users,COMFORTABLE WEARING - Using a chest strap or attaching the device directly, fit your body seamlessly, which will not make it encumbrance on you,EASY TO USE - Just put it on with the chest strap, HHM1 will start recording automatically. The device can store 10 recordings, 30 hours in total, or one 24-hour record. Then you can check the record with the PC software Livenpace.,SATISFACTION GUARANTEED - We always strive to choose high-quality materials and provide the most intimate service, and we commit that our portable chest strap will provide you with a satisfying measurement experience,NOTE: The chest strap needs to be wetted and tightened before wearing