Acrox Technologies MU18 Bluetooth Mouse User Manual 3D Wheel Optical Mouse
Acrox Technologies Co., Ltd. Bluetooth Mouse 3D Wheel Optical Mouse
User Manual

BK4 
Bluetooth Mouse 
OWNER'S GUIDE 
Ver.1.0                    
CAUTION: To use this product properly, please read the user's guide before installing. 

1 
Federal Communication Commission Interference Statement 
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 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. 
FCC Caution: Any changes or modifications not expressly approved by 
the party responsible for compliance could void the user's authority to 
operate this equipment. 
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. 

2 
Functional Introduction   
Scrolling Wheel   
Connect 
Button 
OFF/ON Switch   
Battery Cover 
Right button 
Left button 
LED indicator 
*Mouse Indicator 
Red LED Blinking 
Low battery Warning   
in working mode, LED will be off 
after 10 sec when mouse inactivity. 
Power ON 
Red LED is on for 10 sec.   
Red LED Blinking 
LED will be light blinking during 
paring and mouse didn’t work,   
and light off when paired or if it 
failed to pair after 3 mins 

3 
Battery and Power Management: 
Step 1: Take the battery cover off. 
Step 2: Insert the battery as shown inside the battery compartment. 
Step 3: Replace the cover. 
**Warning: 
*Please insert the battery with the correct position according to the instruction     
  labeled on the mouse. 
Power saving features: 
To conserve the battery power, the mouse offers power 
management functions as below: 
1. The mouse goes into “Saving Mode” after inactivity. 
2. The mouse powers down to “Sleeping Mode” after 5 minutes of   
  Inactivity. There may be a slight delay while the mouse re-establishes   
  Bluetooth connection from power saving or sleeping mode. 
Establishing a Bluetooth Connection   
The Bluetooth mouse can work in any Bluetooth environment. Before 
connecting your Bluetooth mouse with your computer, make sure your 
computer has a working Bluetooth configuration with Human Interface 
AAA Battery 
Pull 
1st 
2nd 
4 
Device (HID) profile. If your computer does not support Bluetooth, you 
need to obtain and install a commercially available Bluetooth dongle 
which converts your computer to a Bluetooth environment.   
Troubleshooting   
A.    Mouse does not work upon installation or is not detected 
Try one or more of the following: 
 Make  sure  the  batteries  are  installed  correctly  and  turn  the  switch  on.   
Replace a fresh set of batteries if it still does not work. 
 Verify that the computer is Bluetooth enabled. 
 Press the connection button to reset the Bluetooth connection between your 
mouse and your computer. Make sure it has been detected by the Operating 
Systems properly. 
B.  The screen cursor does not move properly 
If your screen cursor lags behind the movement, then your Bluetooth 
connection may not be able to transmit all of the data from the mouse 
with the necessary speed.    This may be caused by interference from 
other radio sources, obstructions in the radio wave path, excessive 
distance from the computer, or a combination of the above. 
※ Try the following actions to improve your Bluetooth 
connection and optimize your mouse performance: 
 Remove any metallic objects from the line of sight between your computer 
and the Bluetooth mouse. 
 If  you  are  using  a  computer  with  a  built-in  Bluetooth  antenna,  try 
reorienting the computer until you get a better data rate. 
 If you are using a Bluetooth dongle, use a USB extension cable and place 
the  Bluetooth  dongle  onto  your  desktop  or  somewhere  in  sight  of  your 
Bluetooth mouse. 
 Move the mouse closer to your Bluetooth dongle. 
 Turn off the mouse and turn it on again for better connection. 
 Disconnect any Bluetooth audio devices, such as headsets, that may be 
5 
connected to your computer. 
 Switch  off  any  other  devices  operating  in  the  2.4  GHz  radio  spectrum, 
such  as  Wi-Fi network,  mobile  telephones,  etc.,  or move  their antennas 
further away from your computer.