Pay in 4 interest-free payments of $87.38 Learn more
Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
the most advanced wearable muscle oxygen sensor on the market
FYER helps you optimize training
What’s in the box
✔️ Waterproof USB plug✔️ Durable travel pouch
✔️ Free App & Lifetime Updates (No subscription required)✔️ Charging cable✔️ Patch Pack (20 adhesive patches)✔️ Strap Pack (S-M-L sizes)
Train.Red FYER 2.0 Muscle Oxygen Sensor + app NIRS the most advanced wearable muscleUnlock next level performance with the NEW Train. Red FYER 2. 0, the most advanced wearable muscle oxygen sensor on the market. While athletes invest in equipment, training plans, and supplements, the true driver of performance is often overlooked: your muscles. With real time muscle oxygen (SmO%) tracking, FYER helps you optimize training, recovery, and performance like never before. Plus, you can connect 10+ FYER sensors to a single smart
