HiFuture Altus - Multifunction Button Operation; Powering On and Off; Playback and Call Controls

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Multifunction Button Operation
 Turn on: Press the multifunction button for two seconds to power on the device.
Green circle light will gradually light up in a clockwise direction, speaker function is
indicated with the light breathing.
 Turn off: Press the multifunction button for two seconds to power off the device.
o The device automatically powers off after 10 minutes of not being
connected to Bluetooth.
o The device automatically powers off after 30 minutes of inactivity.
 Play / Pause: Press the multifunction button.
 Answer a call / End a call: Press the multifunction button.
 Reject a call: Press and hold the multifunction button for a second.
 Switch call microphone: Double press the multifunction button.