OPUMP

As the first FDA-approved breathing trainer, OPUMP finally meets you.
Used for respiratory muscle training, OPUMP is the first intelligent breathing 
trainer that can be used independently and connected to OPUMP App to test 
inspiratory capacity, have breathing training, learn different breathing methods, 
and track the progress.  
OPUMP Breathing Trainer Features:
- Test inspiratory and expiratory vital capacity;
- Various breathing training methods;
- Analysis of historical breathing records;
- Added: Breathing training game, breathing training course.
Disclaimer:
OPUMP is not a medical device and should not be used to diagnose or
treat any medical condition. 
The data reflected in the product is for reference and used for APP content 
only. 
Please consult a doctor if you need any medical advice.
(PS. OPUMP has completed the FDA registration in the United States and 
obtained the medical device certification in China.)