Instructions for Use
Page 4
... ears for low volume musical enjoyment.... 4 Listening to music via headphones tempts ᕆ into listening to louder music than loudspeakers would. Protect your new headphone: ᕃ FEATURES ț light headphone with high wearing comfort ț excellent tonal quality ț easy...TO LOUD MUSIC ? - Sennheiser headphones are important for the optimal use of the excellent features of your sound hearing; HDI 550 The hi-fi infrared headphone HDI 550 recieves the stereo sound information radiated by an appropriate wireless infrared transmitter S 550. Please observe the following ...
... ears for low volume musical enjoyment.... 4 Listening to music via headphones tempts ᕆ into listening to louder music than loudspeakers would. Protect your new headphone: ᕃ FEATURES ț light headphone with high wearing comfort ț excellent tonal quality ț easy...TO LOUD MUSIC ? - Sennheiser headphones are important for the optimal use of the excellent features of your sound hearing; HDI 550 The hi-fi infrared headphone HDI 550 recieves the stereo sound information radiated by an appropriate wireless infrared transmitter S 550. Please observe the following ...
Instructions for Use
Page 5
...(Cat.No. 03262) OPERATING TIPS • Before first use the rechargeable battery should be too high. Check connection to maximum on headphone but no signal available... TECHNICAL DATA Modulation Carrier frequencies Sound frequency range THD S/N ratio Operating time Max. rechargeable FM 2.3 / 2.8... may not be operable. ț Receivermaynotbe intherangeofreception. ț Level control of the transmitter S 550 may be charged for 24 hours ! • Switch off the headphone after use, recharge the rechargeable battery. • The automatic squelch circuit suppresses hissing noise outside...
...(Cat.No. 03262) OPERATING TIPS • Before first use the rechargeable battery should be too high. Check connection to maximum on headphone but no signal available... TECHNICAL DATA Modulation Carrier frequencies Sound frequency range THD S/N ratio Operating time Max. rechargeable FM 2.3 / 2.8... may not be operable. ț Receivermaynotbe intherangeofreception. ț Level control of the transmitter S 550 may be charged for 24 hours ! • Switch off the headphone after use, recharge the rechargeable battery. • The automatic squelch circuit suppresses hissing noise outside...