User manual SENNHEISER MM 450-X TRAVEL

[. . . ] MM 450-X Instruction manual Contents Contents Important safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 MM 450-X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Delivery includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Pull the 2. 5 mm jack plug of the audio cable ¹ from the socket ¿ of the headset. When detaching the audio cable, the Bluetooth function is not automatically switched on. Switch the Bluetooth function on again (see "Switching the Bluetooth function on/off" on page 16). MM 450-X | 13 Putting the MM 450-X into operation Switching the MM 450-X on/off WARNING Danger of hearing damage!Listening at high volume levels for long periods can lead to permanent hearing defects. Before putting the headset on, set the volume to a low level. Do not continuously expose yourself to high volumes. Switching the MM 450-X on 1 5 Press the Master button and keep it pressed until the flashes blue. You hear an ascending beep. LED 1 ­ When switching the headset on for the first time, it will automatically go into pairing mode. The headset is waiting to be paired with a Bluetooth enabled device (see page 12). ­ When the headset is already paired with an audio source, the Bluetooth connection is automatically established. You hear an ascending beep and then you hear your audio source. ­ When the headset is already paired with an audio source but the audio source is switched off or out of range, the LED 1 flashes blue. The headset will try for 3 minutes to connect to one of the up to 8 previously paired audio sources. If this fails, the headset automatically switches off after 60 minutes. Switching the MM 450-X off 1 5 Press the Master button flashes 3 times red. and keep it pressed until the LED 1 You hear a descending beep. The Bluetooth connection is automatically deactivated. The headset switches off. 14 | MM 450-X Using the MM 450-X Using the MM 450-X Adjusting the MM 450-X to the listening situation The headset has a NoiseGard function, a Bluetooth function and a TalkThrough function. Depending on the listening situation, you can switch these functions on or off. If your audio source supports apt-X, the MM 450-X will automatically stream music wirelessly in high-quality mode (apt-X). If your audio source does not support apt-X, music will be streamed in standard quality mode (SBC). Switching the NoiseGard function on/off The NoiseGard button » is backlit, indicating the current setting. The backlighting goes off after a short while in order to conserve energy. [. . . ] apt-X is leading the way in bringing pro-audio quality to the discerning consumer. Professional grade sound MM 450-X | 25 apt-X audio coding apt-X key features: · Blind listening tests with industry reference audiences have shown that apt-X over Bluetooth is indistinguishable from audio delivered over wired technology. Unlike psychoacoustic-based technologies such as MP3 or AAC, apt-X can be used to transport audio without degrading the audio quality. With MPEG/AAC compression, the encoding process is destructive and content perceived as "irrelevant" is discarded. apt-X's transparent, non-destructive approach ensures that every frequency present in the original signal is preserved in the encoded and decoded signal. [. . . ]