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Sigma KEE - ElectricSpeakerDevice
KB Term: 
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ElectricSpeakerDevice
A combination SpeakerDevice and ElectricDevice.
Relationships      
Parents ElectricDevice A Device that uses Electricity as its primary power source.
  SpeakerDevice SpeakerDevice is a type of device that converts electrical signals into sounds loud enough to be heard at a distance
Children EarphoneEarphone is a type of Device that that converts electric signals into sound and is usually held over or inserted in the ear
 LoudspeakerA SpeakerDevice for projecting sound through the air. A loudspeaker produces louder sound than earphones or a hearing aid.


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