User's Manual

User's Guide
Wireless Optical
Virtual Touch Mouse
B8021MR + C75
Battery use reminders
Trouble Shooting
FCC statement
Important Notes:
Please follow the instructions contained in the manual. Do not try to disassemble or replace parts
in the products.
Do not put the product in water or on any wet surfaces.
To avoid electrocution, please do not pick up the device when your hands are wet.
Do not put the product near a heat source.
1. Remove worn-out batteries from equipment immediately and dispose of them promptly
2. Keep all batteries (used or new) out of the reach of children.
3. Never dispose of batteries in fire, as they could explode.
4. Always replace all the batteries at the same time. Mixing old and new batteries or mining types (such as
alkaline with zinc carbon) will reduce overall performance and could cause leakage or rupture.
5. Do not mix different types of batteries (e.g. Ni MH, NiCd, alkaline, and etc) in the mouse.
6. Remove batteries from this device if the device is not going to be used for a long time.
7. If the performance of the batteries decreases substantially, it is time to replace the batteries.
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.
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 or television reception. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment causes 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.
Note : Modifications not approved by the party responsible for compliance could void user’s authority to
operate the equipment.
a. Make sure you have connected the receiver correctly to the computer's USB port.
b. Check if the batteries have been installed correctly according to the diagram indicated in the battery
cabinet
c. For the best performance, we suggest that you place the receiver away from other electrical devices.
d. Unplug and re-plug the receiver, or try another USB port. Try connecting directly to your computer
instead of using a USB hub.

Summary of content (5 pages)