[. . . ] FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Parts 74 and 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 communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] The display will indicate the selected frequency in MHz for about 2 seconds, the battery type ("BATBAT" ­ two dry batteries, "-Accu-" ­ BP 4000) for about 2 seconds, and finally the frequency as a Preset Subchannel. The receiver is electronically locked so you cannot make any adjustments. You can scroll through the following status screens: - Preset (comes up only if a Preset has been saved): Carrier frequency shown as a Subchannel number within a Frequency Group. (This screen is only available if you are using a BP 4000 battery pack. ) In SETUP mode, the electronic lock is disabled so you can adjust all receiver parameters. To toggle between LOCK and SETUP modes, hold down the Jog switch for about 2 seconds. If the receiver has found enough CHANNELs for your system, confirm the selected GROUP. If the clean CHANNELs found are fewer than required, use the arrow keys to select a different GROUP. Having selected and confirmed a GROUP, you can use the arrow keys to select any clean CHANNEL within this GROUP. Make sure never to set the squelch threshold any higher than absolutely necessary. ), the lower the sensitivity of the receiver and thus the usable range between transmitter and receiver. Confirm the selected GROUP or use the arrow keys to select a different GROUP. Having selected and confirmed a GROUP, you can use the arrow keys to select any CHANNEL within this GROUP. Confirm the selected frequency or use the arrow keys to select a different GROUP. Check that the AC mains voltage stated on the included power supply is identical to the AC mains voltage available where you will use your system. Using the power supply with a different AC voltage may cause damage to the unit. Plug the feeder cable on the included power supply into the DC ONLY socket on the transmitter rear panel and screw down the DC connector. Plug the power cable on the power supply into a convenient power outlet. The transmitter is electronically locked so you cannot make any adjustments. You can scroll through the following status screens: - Preset (comes up only if a Preset has been saved): Carrier frequency shown as a Subchannel number within a Frequency Group. ) - "DEVICE NAME": Current receiver name (comes up only if you have previously named the receiver) In SETUP mode, the electronic lock is disabled so you can adjust all transmitter parameters. To toggle between LOCK and SETUP modes, hold down SETUP for about 2 seconds. [. . . ] To avoid hearing damage, always leave the hearing protection limiter ON. The sensitivity of the human hearing system to aural stress differs from person to person. Therefore, AKG will not assume any liability for any damage to the user's hearing. In STEREO mode, you can set the balance between the left and right audio channels. [. . . ]