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4-2 UHF PLL hand-held transmitter //
Power: push to turn the transmitter on. When the transmitter is on, push and
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hold for 2 seconds to turn it off.
Mute: while the transmitter is on, switch Mute up to talk and down to mute. If
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the transmitter is off, switch the Mute up to turn the unit on. The transmitter
turns itself off automatically after 1, 10 or 30 minutes of muting depending on
setting.
Ultrasonic receiving unit: it receives pairing signals from the ultrasonic
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transmission unit at the receiver end.
Battery holder: it holds UM3, AA 1.5V battery or rechargeable battery x 2.
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LED indicator: it shows the transmitter's status, including battery level, mute and
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pairing indication.
LCD display: it shows the parameter settings in the transmitter.
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SET: it allows parameter settings, including frequency, group, channel, sensitivity,
transmission power, auto off countdown and machine code.
▲/▼: these are used with "SET" to change the parameter settings.
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: push and hold the "LOCK" button for 2 seconds to lock the buttons. Push and
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hold again for 2 seconds to unlock.
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