[. . . ] We have designed these products to give you reliable operation over many years. Please take a few moments to read these instructions carefully, as we want you to enjoy your new Sennheiser products quickly and to the full. With the Sennheiser evolution wireless in-ear monitoring system ew 300 IEM (suitable for both stage and broadcast use), musicians, video and sound amateurs, reporters/broadcasters, etc. Can directly monitor the received sound signals without troublesome cables or monitor speakers being required. [. . . ] The EK 300 IEM is switched on or off via the volume control with integral on/off switch. SET Press the SET button ­ to select a menu, ­ to change to the next menu, ­ to change to the next segment when entering a name (SR 300 IEM only), ­ to return to the top menu level. Press the UP button ­ to adjust the setting of a menu, ­ to change a single character when entering a name (SR 300 IEM only). Press the DOWN button ­ to adjust the setting of a menu, ­ to change a single character when entering a name (SR 300 IEM only). 8-step level display for audio signal, left or MONO 8-step level display for audio signal, right 6-segment alphanumeric main display ¿ "MUTE" display. Lights up for a short moment when switching on the transmitter or when changing the frequency. (This display can be the transmitter's standard display which always appears after switch-on). (This display can be the transmitter's standard display which always appears after switch-on). (This display can be the transmitter's standard display which always appears after switch-on). EK 300 IEM receiver 8-step level display for audio (AF) signal Alphanumeric main display 8-step level display for incoming RF signal Note: If the operating steps for adjusting the settings via the menu are similar for both devices, only the main display of the SR 300 IEM transmitter is shown. A special feature of the Sennheiser evolution wireless system ew 300 IEM is the similarity of the operating controls of both transmitter and receiver. In stressfull situations, for example on stage or during a live show or presentation, it is important that the devices are easy to operate and that adjustments to the settings can be made quickly and instinctively. Important: With the / buttons you can directly switch between the factorypreset frequencies (channel presets). Press the SET button to enter the top menu level: By briefly pressing SET again, you can change to the next menu. One second, the selected menu appears on the display and then the current setting of the menu is indicated. Press the / buttons to adjust the settings of the selected menu: The new setting starts flashing on the display. Important: New settings become effective immediately and will be retained in memory on switch-off!: When changing transmitter frequencies, care should be taken to avoid causing interference to other channels/users. in the "TUNE" and "NAME" menu , the / buttons feature a "fast search" function. By briefly pressing the / buttons, the display jumps either forwards or backwards to the next setting. If you hold down a button, the cycling of the display is continously accelerted. If you release the button and start over again, the cycling of the display restarts at normal speed. [. . . ] When using several transmitters simultaneously, observe a minimum distance of 40 cm between transmitting antennas. use special accessories for multi-channel applications (u "Accessories"). When using the ew 300 IEM system in combination with radiomicrophone systems, a minimum channel spacing of 8 MHz should be maintained to avoid RF breakthrough between systems. Do not use any cleansing agents or solvents as these could damage the surface of the equipment. [. . . ]