1 The mouse can work only on a clean, flat, and non-slippery surface in order to ensure smooth and accurate cursor action. 2 This optical mouse senses light to detect mouses movement. When it works on the glass, translucent, reflective, or dark-colored surface, the mouse movement may be affected sometimes. 1 We recommend using alkaline batteries for a longer battery life. 2 Don't mix different types of batteries or new and old batteries together. Always replace old batteries with new and same type batteries. 3 Remove batteries after long periods of non-use. Battery leakage or corrosion may damage the device quality and cause danger. 4 Battery low Alarm:
- When the mouse battery is low, the RED LED indicator behind mouse scroll wheel will blink when the mouse is moved. Please change batteries immediately when the RED LED indicator lights up to ensure the good use of this mouse. After you change the batteries, the RED LED indicator will disappear. FCC Guidelines 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 toradio 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 bedetermined by turning the equipment off and on, the user is encouraged to try to correct the interference byone 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. Use only shielded cables to connect I/O devices to this equipment. FCC Warning: 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, (2) this device must accept any interference received, including interference that may cause undesired operation. Information to user: The users manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. 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. Shielded interface cable, if any, must be used in order to comply with emission limits.