there is one in the pants and one in the shirt. The one in the pants communicates only with the one in
the shirt, over quite a short distance, and the one in the shirt communicates with the app, which could be
across the room. So in effect, only the shirt is emitting significant energy at all. And even then, it's much
less than other typical consumer devices (see Exhibit A below)
Exhibit A. Typical Power Output of Consumer Devices (in milliwatts)
Cell Phone
500 mW
Wi-Fi Router
100 mW
Fitness Tracker
10 mW
PIVOT Yoga Shirt 100 mW
PIVOT Yoga
Pants
7 mW
source: TuringSense, Inc.
The second main way to measure the impact on humans is referred to by engineers as the Specific
Absorption Rate, or SAR. This measures the unit rate at which the device's energy is absorbed from a
certain distance into the body at a specific point. The limit for this in the USA, set by the FCC, is 1.6 watts
per kilogram (W/kg), averaged over one gram of simulated biological tissue. It's helpful to compare
common consumer devices, and note below that PIVOT Yoga is again substantially less than a typical
device like a cell phone.
Exhibit B. Specific Absorption Rates for Consumer Devices
