Unpacking And Checking Equipment; Preparation; Li-Ion Battery Pack Precautions; Charging The Battery Pack 02 Speaker - Retevis RT666 User Manual

UNPACKING AND CHECKING EQUIPMENT

Carefully unpack the transceiver. We recommend that you identify the items
listed in the following table before discarding the packing material. If any items
are missing or have been damaged during shipment, file a claim with the carr-
ier immediately.
Packing List
DESCRIPTION QUANTITY
Unit Transceiver 2
Battery Pack 2
Desktop Charger 2
Li- ion Battery Pack Precautions
● Do not short the battery terminals or dispose of the battery by fire. Never
attempt to remove the casing from the battery pack.
● Keep the charging temperature always between 5℃ and 40℃.
● Do not use the transceiver while charging the battery pack. We recomme-
nd you switch the transceiver power OFF while charging is taking place.
● Do not recharge the battery pack if it is already fully charged. Doing so
may cause the life of the battery pack to shorten or the battery pack may be
damaged.
● Use the battery pack only for its intended purpose. Never use any charger or
battery pack that is damaged.
● Do not short-circuit the battery. Accidental short-circuiting can occur when
a metallic object such as a coin, clip, or pen causes direct connection of the
positive (+) and negative (-) terminals of the battery. This might happen, for
example, when you carry a spare battery pack in your pocket or purse.
Short-circuiting the terminals may damage the battery or the connecting
object.
Charging the Battery Pack
The battery pack is not charged at the factory, please charge it before use.
Initially charging the battery pack after purchase or extended storage (greater
than 2 months) will not bring the battery pack to its normal operating capacity.
After two or three complete charge and discharge cycles. The full performance
of battery will be achieved.
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DESCRIPTION QUANTITY
Belt Clip 2
Hand Strap 2
User Manual 1

PREPARATION

1. Slide the battery pack or transceiver with a battery pack into the desktop
charger.
2. Make sure the battery pack contacts are in contact with the charging
terminals.
3. The charging LED lights red and charging begins.
4. After charging about 4 hours, when the light turns to green, it means the
battery pack is fully charged.
5. Then you can take off the battery pack or transceiver with the battery pack
and use it.

BASIC OPERATION

Switch Power On/Off

1. Turn On: turn the [Power] switch clockwise to switch the transceiver ON, an
alert tone will be heard.
2. Turn Off: turn the [Power] switch counter clockwise to switch the transceiver
OFF.

Adjusting the Volume

Rotate the [Volume] control to adjust the volume. Clockwise increases the
volume and counter clockwise decreases it.

Selecting a Channel

Rotate the [Channel Selector] to choose your desired channel. Clockwise incr-
eases the number and counter clockwise decreases it. If the channel number
annunciation is activated, the radio will announce the current corresponding
channel number. If none channel has been programmed, it cannot be used.
When a nonprogrammed channel is selected, the LED indicator lights orange
and an alert tone sounds.
Transmitting & Receiving
1. Press the [PTT] switch and speak into the microphone in your normal
speaking voice, for best sound quality at the receiving station, hold the
microphone approximately 1~2 inches (2.5~5 cm) from your mouth.
2. Release the [PTT] switch to receive.
PREPARATION
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