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Bluetooth Audio Phone---BT400HM
Operating instructions
1. Product instructions
Thank you for purchasing and using the Bluetooth Audio Phone product, this product is a kind of fashion design,
supports the telephone conference, with wireless Bluetooth transmission function calls and sound system. This
product supports Bluetooth 4 protocol，to support intelligent mobile phone, tablet computer, notebook computer,
iphone and other wireless Bluetooth enabled devices, which can get rid of cable tie, remain free to enjoy the fun of
voice and music.
Before using this product, please read carefully all the operation and instructions
2.Product appearance 2.1 The panel indicator and button
“ON/OFF”button operating instructions：
Power on：Under power off status, press ON/OFF button and hold for 2 seconds, the indicator light flashes,
you will hear a sound which means power on.
Power off：Under power off status, press ON/OFF button and hold for 4seconds, the indicator light turns off,
you will hear a sound which means power off.
Pairing：
★ You need to pair when used for the first time, under power off mode, press ON/OFF button and hold for 6
seconds, red and green lights flashing alternately enter the pairing status.
★ Activate the Bluetooth feature on your phone and search for the handset.
★ Select the handset (BT400HM) from the list of devices found by your phone (if requested, enter the
Bluetooth pass word) to pair.
★ If pairing overtime, please repeat the above steps to pair again. Pairing successfully, the indicator will turn
green and flashing slowly.
（1）ON / OFF switch button / Status Indicator
（2） Last song
（3） Next song
（4）HS (handset) / HF (Handsfree) / MUSIC Toggle Switches
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Answering a call：The indicator turns green and flashes quickly when there is an incoming call. Press the
ON/OFF button to answer the call.
Refused to answer the phone：Press the ON/OFF button and hold to refuse to answer the phone.
Ending a call：During a call, press the ON/OFF button to end the call.
Playing and pausing music：Press the ON/OFF button gently to play music that stored in your phone. Press
the ON/OFF button to pause music when playing music, press this button again to replay.
HS/HF/MUSIC operating instructions：
During a call, slide the toggle switch to the HS position to use handset to communicate; slide the toggle switch
to the HF/Music position to enter into the HF mode, this mode can be used as a conference call;
Under standby mode, slide the toggle switch to the HF/MUSIC position to enter the music playing mode, press
“+ or –”button to adjust volume; press the “ ”or “ ” to select the last song or the next song.
2.2 Volume up (+) or down (-) button on side
Adjust the volume during a call
Adjust the volume under music mode.
2.3．DC 5V USB charging socket and reset button hole
2.3.1 Battery low alarm:
Under connected mode, when the handset battery is low, the handset beeps and the indicator light flashes red,
you should connect the charger to the charging socket on the handset, when the handset is fully charged, the
indicator light will change from red to green.
If you do not charge the handset in 4 minutes, the handset will turned off automatically.
2.3.2 Reset:
If the handset crashes or no response when in use, press the Reset button hole and hold for 8 seconds by a sharp
object. Reboot your handset.
2.4 . Power off automatically: if the handset and external terminal equipment lost connection, after 6 seconds, the
handset will power off automatically.
This product is a patented product.
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FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
* RF warning for Portable device:
The device has been evaluated to meet general RF exposure requirement. The device can be used in portable
exposure condition without restriction.
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