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Power: push to turn the transmitter on. When the transmitter is on, push and
hold for 2 seconds to turn it o.
Mute: while the transmitter is on, switch Mute up to talk and down to mute. If
the transmitter is o, switch the Mute up to turn the unit on. The transmitter
turns itself o automatically after 1, 10 or 30 minutes of muting depending
on setting.
Ultrasonic receiving unit: it receives remoset signal from the ultrasonic trans-
mission unit at the receiver end.
Battery holder: it holds UM3, AA 1.5V battery or rechargeable battery x 2.
LED indicator: it shows the transmitter’s status, including battery level, mute
and pairing status.
Detachable capsule module.
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4-4 UHF PLL hand-held transmitter //