IronLung - Breath Recovery Trainer
IronLung - Breath Recovery Trainer
Silicone Breathing Fitness Exercise Equipment Portable Throat Adjustable Resistance Breathing Exercise Device
2,000+ bought in past month
- Strong Multi-layer Protection
- No Charging Required
- No Battery Drain
- Unlimited Image Changes
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SPECIFICATIONS
NO POWER
Unlike other cases, this NFC technology uses no battery.
NFC TECHNOLOGY
Upgraded 4 color screen makes the image much more vibrant than ever before!
Customer Reviews
At the moment it seems that it works well, it can be regulated in intensity and the effort is noticeable when breathing, I think it is a good purchase
For the price seems very good quality to me, if it really feels like it limits the air when breathing through your mouth. Arrived earlier than expected and very well packed.
Very good product, it has served me a lot for training, it gives it greater difficulty, they have lasted a long time
Very good
Excellent quality and very comfortable. It arrived in no time