Power On / Off 2. Battery Door 5. Volume Control 3. LED Insert Batteries 1. Locate the battery door on the each earcup. 2. To open the battery doors, depress the button at the top of each door, and pull the door outward from the earcup. 3. Insert 2 "AAA" batteries. 4. Close battery doors. Turn on wireless operation 1. Locate the power on / off button on the left earcup. 2. Press button to "on". 3. The LED will be red when the unit is powered on. Set Volume Control 1. Locate the volume control on the right earcup. 2. Adjust the volume to a comfortable setting. Trouble Shooting Guide Note: The stereophone will not function, and distortion will occur anytime the signal from the screen to the stereophone is blocked. No sound from the stereophone Check that the unit is "on" / Check that the stereophone batteries are fresh and inserted in the correct direction. / Adjust volume control Distortion, background noise Verify you are facing the screen / Check batteries No*Questions*Asked Lifetime Warranty What does your warranty cover? Any defect in material or workmanship. For how long after the original purchase? A lifetime What will we do? Provide you with a new, or at our option, a reconditioned unit. How do you make a warranty claim? First, you must register your product. Go to Click on "Register Your Product" Follow the instructions below to send in your product. Properly pack your unit. Include any cables, etc., which were originally provided with the product. We recommend using the original carton and packing materials. Include in the package a copy of the sales receipt or other evidence of date of original purchase. Also print your name and address and a description of the defect. Ship the unit standard UPS or equivalent prepaid to: Koss Stereophones Warranty/Repair Center 4129 N Port Washington Ave Milwaukee, WI 53212-1052 USA A new or reconditioned unit will be shipped to you prepaid freight. What does your Warranty not cover? Installation and set-up service adjustments, Batteries, Damage from misuse and neglect, Products which have been modified or incorporated into other products, or Products purchased or serviced outside the USA. For additional information, ask your dealer or visit our website at How does state law relate to this warranty? This warranty gives you specific legal rights, and you may also have other rights which may vary from state to state. For products purchased outside the United States and Canada, see dealer for warranty. LIFETIME WARRANTY This Koss product has a Lifetime Limited Warranty which covers normal use by the initial user or purchaser of this particular Koss product. Koss hereby warrants only to the initial user or purchaser that this Koss product will be free of any defect in materials and workmanship for the life of the product. THIS WARRANTY DOES NOT APPLY TO ANY INITIAL USER OR PURCHASER WHO ALLOWS THIS PRODUCT TO BE USED BY MULTIPLE PERSONS. THIS WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY FOR THIS KOSS PRODUCT AND IS IN LIEU OF ALL OTHER WARRANTIES (EXPRESS OR IMPLIED), INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THE SOLE AND EXCLUSIVE REMEDIES AVAILABLE TO THE INITIAL USER OR PURCHASER FOR ANY DEFECTS IN MATERIALS OR WORKMANSHIP SHALL BE THE OBLIGATION OF KOSS, AT ITS SOLE OPTION, TO EITHER REFUND THE PURCHASE PRICE OF THE KOSS PRODUCT, OR REPAIR OR REPLACE THE NON-FUNCTIONING OR DEFECTIVE KOSS PRODUCT PROVIDED IT IS RETURNED TO KOSS IN SECURE PACKAGING TOGETHER WITH A CHECK FOR $6.00 TO OUR FACTORY AT 4129 N. PORT WASHINGTON AVE, MILWAUKEE, WI 53212. If purchased outside the U.S., contact the local Koss Authorized Dealer for details. Koss reserves the right to replace any discontinued product with one of equal value. KOSS SHALL NOT BE LIABLE FOR ANY LOSS, INJURY OR DAMAGES TO PERSONS OR PROPERTY RESULTING FROM THE USE OF THIS PRODUCT OR ANY FAILURE OF OR DEFECT IN THIS PRODUCT, NOR SHALL KOSS BE LIABLE TO THE INITIAL USER OF THIS PRODUCT OR TO ANY OTHER PERSON OR ENTITY FOR ANY GENERAL, SPECIAL, DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, EXEMPLARY, PUNITIVE, OR OTHER DAMAGES OF ANY KIND OR NATURE WHATSOEVER. THE REPAIR OR REPLACEMENT OF ANY NON-FUNCTIONING OR DEFECTIVE PRODUCT OR THE REFUND OF THE PURCHASE PRICE, AT KOSS' OPTION, SHALL CONSTITUTE KOSS' ONLY LIABILITY TO THE INITIAL USER OR PURCHASER, WHETHER SUCH LIABILITY IS BASED ON CONTRACT, TORT, STRICT LIABILITY OR OTHERWISE. Some states may not allow the exclusion or limitation of damages set forth herein in which case the above language may not apply to you. This limited warranty gives you specific legal rights and you may also have other rights which may vary among states or provinces. If usage of this Koss product violates the guidelines of this limited warranty, Koss will repair the product and charge the purchaser for the cost of company time and materials. IMPORTANT SAFETY INFORMATION Avoid playing your stereophone at high volume levels. Some s...