AKG so40 Manual page 10

Fig. 1: SO 40 controls.
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2 Battery compartment for one 1.5-V
AAA size battery (supplied).
The color of the battery compartment
cover indicates the carrier frequency
of your transmitter.
3 Status LED: Indicates battery status.
LED flashes momentarily upon switching
ON and extinguishes: battery is OK.
LED lights constantly: battery will be
dead in about 60 minutes.
4 Input Gain: This rotary pot sets the
sensitivity of the transmitter's audio
section.
5 Charging contacts for charging a
rechargeable battery inside the bat-
tery compartment using the optional
CU 40 charger.
6 XLR connector: 3-pin female standard
XLR connector for connecting the
transmitter directly to a microphone
with a 3-pin male XLR connector.
Refer to section 3.
7 Unlocking button for the XLR
connector.