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• Never look directly at the light of the heart rate sensor as this may
damage your eyesight.
• If your device becomes hot, remove it until it cools down. Exposing skin
to the hot surface for a long period of time may cause skin burn.
• The Heart rate feature is only intended for measuring your heart rate
and must not be used for any other purposes.
Battery warnings
• When disconnecting the power adapter from a power outlet, pull on the
adapter, never on the cable.
• This device must be used with an AC adapter that has been certified
with a Limited Power Source output per IEC 609501 and that has
been qualified per CTIA Certification Requirements for Battery System
Compliance to IEEE 1725. This device comes with an AC adapter that
has the proper certification. AC adapters sold through the Google Store
