DIGIFI Opera s1d, User Manual, Page: 3 / 11

3. Before the first use after opening the box
1. Turn on the main power by sliding switch to the opposite direction of the
charging port, after opening the foreign substance preventing cap attached to
each dongle and ear-set. It is convenient to use sharp tools like pencil or edge
of charging cable connector when sliding.
(To prevent complete discharge of battery due to long term left-out, main
power of dongle and ear-set are turned off.)
2. Please charge the battery enough for more than 2 hours.
* Red LED on the power button is on while charging and LED is turned off
when charging is completed.
3. Charging is not possible when main power is turned off.
4. Music is not played while charging.