Description
See what your muscles are doing.
While athletes focus on gear and training plans, they often overlook the true source of performance: your muscles. Your heart rate shows your overall effort, but Train.Red FYER 2.0 reveals exactly what is happening inside your muscles.
FYER 2.0 allows you to optimize training intensity, fatigue, and recovery in real time. Through the Train.Red app, it transforms complex data into actionable insights. You can also connect 10+ sensors to a single device for seamless team and group monitoring.
Key Metrics:
SmO2: Real-time muscle oxygen saturation
Muscle States & MSS: Muscle response and strain quantification
Recovery & Oxygen Use: Track oxygen demand, utilization, and recovery rate
Key Specs:
Weight: 20 g
Battery Life: Up to 20 hours
Durability: IPX7 waterproof with onboard storage
What’s in the Box?
Train.Red FYER 2.0 Sensor
Free Train.Red App (No subscription required)
Charging cable & waterproof USB plug
Patch Pack (20 patches)
Strap Pack
Durable travel pouch
