[. . . ] Such rights are not affected by the warranties in this Limited Warranty. No Labtec dealer, agent, or employee is authorized to make any modification, extension, or addition to this warranty. Go through installation steps again (see other side), paying particular attention to battery installation (Step 5) and wireless connections to the receiver (Step 6). [. . . ] If it still does not work, try to replace the batteries with new alkaline batteries, then reconnect the devices (Step 6. For important ergonomic information about using your product and setting up your workspace, please read the Comfort Guidelines located on the Labtec web site at http://www. When Mouse Wheel starts blinking: you still have about 30 minutes battery life. When Keyboard LED starts blinking: you still have about 2 hours battery life. For important information on the spill resistant feature of this product, please visit our website at www. This optical device complies with International Standard IEC 825-1: 1993. CAUTION: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. If your product uses batteries, follow the battery manufacturer's instructions as well as these important safety tips. When batteries are misused, they may leak or explode causing burns and personal injury. Labtec warrants that your Labtec hardware product shall be free from defects in material and workmanship for two (2) years, beginning from the date of purchase. Except where prohibited by applicable law, this warranty is nontransferable and is limited to the original purchaser. This warranty gives you specific legal rights, and you may also have other rights that vary under local laws. Labtec's entire liability and your exclusive remedy for any breach of warranty shall be, at Labtec's option, (1) to repair or replace the hardware, or (2) to refund the price paid, provided that the hardware is returned to the point of purchase, or such other place as Labtec may direct, with a copy of the sales receipt or dated itemized receipt. Shipping and handling charges may apply except where prohibited by applicable law. Labtec may, at its option, use new or refurbished or used parts in good working condition to repair or replace any hardware product. Any replacement hardware product will be warranted for the remainder of the original warranty period, or thirty (30) days, whichever is longer or for any additional period of time that may be applicable in your jurisdiction. This warranty does not cover problems or damage resulting from (1) accident, abuse, misapplication, or any unauthorized repair, modification or disassembly; (2) improper operation or maintenance, usage not in accordance with product instructions or connection to improper voltage supply; or (3) use of consumables, such as replacement batteries, not supplied by Labtec except where such restriction is prohibited by applicable law. Before submitting a warranty claim, we recommend you visit the support section at www. [. . . ] Before submitting a warranty claim, we recommend you visit the support section at www. Valid warranty claims are generally processed through the point of purchase during the first thirty (30) days after purchase; however, this period of time may vary depending on where you purchased your product. Please check with Labtec or the retailer where you purchased your product for details. [. . . ]