هذا مدرب انقطاع النفس ثابت لعقد التنفس و freedive
This apnea trainer will help you increase your results in free-diving and breath holding. Includes CO2 and O2 static tables from start. You can make your own table. CAMERA HEART MONITORING ADDED!!!
Can measure heart rate with camera or using other heart rate monitors.
Approved for professional freediving.