Samson Airline AX1 Owner's Manual page 9

Guided Tour - AX1 Handheld Transmitter
Samson AirLine
5: Battery compartment - Insert a standard AAA alkaline battery here,
being sure to observe the plus and minus polarity markings shown. We
recommend the Duracell type battery. Although rechargeable Ni-Cad
batteries can be used, they do not supply adequate current for more than
four hours. WARNING: Do not insert the battery backwards; doing so can
cause severe damage to the AX1 and will void your warranty.
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6: Microphone Input Level control (trimpot) - Use the supplied plastic
screwdriver to raise or lower the input level sensitivity of the AX1 as required.
See the "Setting Up and Using Your AirLine System" section on page 11 in this
manual for more information.
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