[. . . ] (When using a USB hub, check with the hub manufacturer to be sure the hub supports a device such as a microphone. Plug the microphone directly into the computer's powered USB port for optimal performance. ) 2. (A series of bubbles will appear by the Windows toolbar to notify you of a new device. ) 3. [. . . ] (The "Sound playback" should remain your usual sound output device). Position the U7 4 to 6 inches away from your source (your mouth or music instrument). You will see activity in the "Input Level" meter. Mac OSX recognition instructions 1. (When using a USB hub, check with the hub manufacturer to be sure the hub supports a device such as a microphone. Plug the U7 directly into the computer's powered USB port for optimal performance. ) 2. As you are speaking or playing adjust the "Input Volume" slider. Take care not to allow the signal to go beyond the meter, if the meter is fully illuminated the sound can become distorted. The meter should be illuminated 3/4ths of the way to obtain the best sound quality. Position the U7 approximately 4 to 6 inches from the sound source for best results. Locate the Preferences in your audio program and select the "C-Media USB Audio Device". Adjust the input level in this program so that the audio signal is strong but not distorted. Under "Hardware" click on the "Sound" icon. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. 5. Click on the "Input" button and choose the "C-Media USB Audio Device". Two-Year Limited Warranty CAD Professional Microphones hereby warrants that this product will be free of defects in material and workmanship for a period of two years from the date of purchase. [. . . ] Shipping Instructions Please call our customer service department at 440-349-4900 for a pre-approved return authorization number. Carefully repack the unit and return it to: CAD Professional Microphones, 6573 Cochran Road, Building I, Solon, Ohio 44139. RETURNS WITHOUT A PRE-APPROVED RETURN AUTHORIZATION NUMBER WILL BE REFUSED. [. . . ]