Celltronix BTH200H - Basic Operation; Turning the Headset On;Off; Pairing BTH200 H with a Bluetooth Device

3. Charging the battery of the BTH200H
First use—The Bluetooth Intercom headsets have built-in rechargeable
batteries, you must charge their batteries fully before first use.
Low power—When you hear 3 low tones every 30 seconds and see the red
LED flashing, the battery is low power and needs to be charged.
The charging steps are as follows:
Step1: Pull out USB cable from the button of the BTH200H
Step2: Connect one end of charger to standard power outlet and connect the
other end of charger to the button of the BTH200H
Step3: The red LED is on while charging. It takes about 2 hours to fully charge
the battery
Step4: When charging has completed, the red LED will turn off.
Warning:
1) The battery is recyclable.
2） Batteries (battery pack or batteries installed) should not be exposed
to excessive heat place such as sunshine, fire or the like.
 Basic operation
1. Turning the headset on/off
Functions
Operations
LED indicator
Indication tone
Turning on
BTH200H
Press and hold
MFB button for 3
seconds
Blue LED is on for 1
second and then
flashes twice
1 long tone
Turning off
BTH200H
Press and hold
MFB button for 7-8
seconds
Red LED is on for 1
second and then
flashes twice
1 long tone
Entering
pairing
mode
Press and hold
MFB button for 3-5
seconds
Red and blue LEDs
flash alternately
2 short tones
Remark: If you want the Intercom headset to enter pairing mode, you have to
press and hold MFB button for 3-5 seconds when the headset is turned off or
in standby mode (not connected to a device).
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