Vol-/ Down Button; Vol+/ Up Button - LifeSpan APEX Owner's Manual

"Mode" button: Press this button to cycle through different countdown modes:
1. "15:00" flashing window is time countdown
2. "1.0" flashing window is distance countdown
3. "50" flashing window is calories countdown
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4. Match Run mode
After you choose a mode, press "incline+" "incline –" or "speed+" "speed –" to set
countdown value. If you do not choose any mode, exit to back to standby mode.
Play/Pause button: To pause or to start when playing music or video.
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Switch button: You can press this button to choose between standby mode, music
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and video.

VOL-/ DOWN button:

Long press: reduce volume.
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Short press: previous song.

VOL+/ UP button:

Long press: increase volume.
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Short press: next song.
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APEX