[. . . ] there should be no obstacles in the light path between transmitter and receiver. Direct sunlight may interfere with the reception and may damage the transmitter. Pull the power supply unit out of the electrical outlet when the unit will not be used for extended periods of time. English 4 Using the stethoset receiver When putting the stethoset receiver on, make sure the operating control is pointing downwards and the letters are at the front. The stethoset receiver automatically turns on if you pull the earbows apart. English 5 Adjusting the volume Adjust the receiver's volume with the operating control. [. . . ] According to today's scientific knowledge, the infrared light emitted by this unit is not harmful to humans or animals. 9 English WARNING: When people use headphones, they tend to choose a higher volume than with loudspeakers. However, if your hearing has deteriorated and you need to rely on an assitive listening system, please avoid listening at high volume levels for a long time. Please protect your hearing. English 10 Accessories Only use original Sennheiser spare parts and accessories. for power supply or battery) may cause damage to the unit and will invalidate the waranty. The following accessories are available from your authorized dealer: Rechargeable battery Charger Stethoset receiver Clip-on receiver with audio socket Transmitter External microphone BA 151 L 151-2 RI 810 RI 810 S TI 810 MKE 800 TV 11 English English BA 151 rechargeable battery By using a spare accupack, you can use the stethoset receiver for more than four hours of continuous operation. Always store the spare accupack in the small charging compartment at the right of the transmitter. The right LED on the transmitter lights up green to show charging is taking place. When charging an battery in the small charging compartment, the charging time is 10-12 hours. A battery has a service life of 1-2 years and should be replaced if the operating time decreases. Please dispose of the battery as special waste or return them to your specialist dealer. To protect the environment, only dispose of totally exhausted accupacks which cannot be recharged. L 151-2 charger Spare batteries can be charged via the L 151-2 charger. 12 RI 810 additional stethoset receiver One transmitter can transmit to several receivers. Additional RI 810 receivers are available from your authorized dealer. RI 810 S clip-on receiver Instead of earbows, this receiver features a socket for connecting a headphone or a connecting cable which allows its use with a hearing aid. MKE 800 TV external microphone If your TV doesn't have a headphone output, SCART or RCA socket, you can use your SET 810 together with the MKE 800 TV microphone. Fix the microphone to the loudspeaker of your TV by means of Velcro tape. Connect the microphone connector to the MIC socket on the transmitter and set the MO/ST switch to mono (MO). 13 English If problems occur. . . - Are the receiver and sound source turned on and is the volume of the receiver and sound source sufficient?- Is the receiver's operating control pointed at the transmitter? [. . . ] 94 g (without battery) diameter: 3. 8 inch, heigth: 1. 1 inch > 125 dB 2. 4 V via BA 151 battery more than 4 hours per battery approx. 60 g (without battery) length: 5. 8 inch, width: 3. 1 inch, heigth: 0. 6 inch 17 English Manufacturer declarations CE Declaration of Conformity This equipment is in compliance with the essential requirements and other relevant provisions of Directives 2006/95/EC. The declaration is available on the internet site at www. sennheiser. com. Before putting the device into operation, please observe the respective country-specific regulations! English WEEE Declaration Your Sennheiser product was developed and manufactured with highquality materials and components which can be recycled and/or reused. [. . . ]