Operating Manual
Aqua M40
F.A.S.T GmbH
A40 2014
F.A.S.T. GmbH
Bössingerstrasse 36
D- 74243 Langenbrettach
Page 6
* Push-button or input not relevant for measurement procedure
4.2.1 Switch on
Keep the Power push-button [5] pressed for about 4 seconds. The blue LED will flash, and the
headphones will be switched on.
4.2.2 Switch off
Keep the Power push-button [5] pressed for about 4 seconds. The red LED will flash, and the
headphones will be switched off.
4.2.3 Further functions
Tip [6] if you wish to increase the volume. The equipment issues a tone as soon
as the maximum volume has been reached.
Tip VOLUME- [7] if you wish to reduce the volume. The equipment issues a tone as soon
as the minimum volume has been reached.
4.2.4 Voltage status / charging
As soon as the red LED on the headphones flashes, the headphones should be charged. As
soon as the equipment issues an audio warning, the headphones will switch off 3 to 5 minutes
later due to insufficient power.
The central unit is charged through the charging unit [5] and [6] respectively and by applying
the charger leads [7] (as listed in Chapter 1 “Scope of delivery”). As soon as the red LED
goes out, the device is fully charged.
