Nokia LPS-4 - Manual (Page 8)

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3. Technical data
External audio output:
• Connector: 3.5-mm socket
• Can be connected to the audio input of a compatible hearing aid or to a
compatible speech processor of a cochlear implant
• Impedance: >1 k
Ω @ 1 kHz (nominal 2.2 kΩ @1 kHz)
• Typical output signal level: 0.5–10 mV rms
• Symbol:
The loopset can be connected to a compatible speech processor with a suitable
cable that has a 3.5-mm stereo or mono plug. The sound that you hear through
the loopset is monophonic.
External audio input:
• This feature is not available.
• Symbol: