Charging The Btunes; Getting Started; Powering On/Off The Btunes - Bose QC25 User Manual

2. Charging the BTunes

When the BTunes need to be charged, it will emits "Battery low" and the red
LEDflashes instead of blue LED. Pleaserecharge the battery of the BTunes.
1) Plug the USB charging cable into the charging jack of a PC or a charger.
2) Plug the end of USB charging cable into the USB port on the BTunes.
RED light on→Charging
RED light off→Finished charging
3)It will take about 1.5 hours to finish charging.
Warning:
The battery is recyclable.
Batteries (battery pack or batteries installed) shall not be exposed to
excessive heat, such as sunshine, fire or the like.

■ Getting started

1.

Powering on/off the BTunes

Function
Power on
Power off
Operation
Press and hold MFB
button for 2 seconds
Press and hold MFB
button for 3
seconds
LED indicator
Blue LED on
Red LED on
2
Prompt tone
Power on
Power off