Beyond signal transmission, what does a broader definition of a 'wireless speaker' imply about its power?
Answer
Self-sufficiency via a battery-powered unit
The scope of what qualifies as a 'wireless speaker' can be interpreted differently based on the definition used. If the focus is strictly on the audio signal being transmitted through the air (e.g., via Bluetooth), then the engineer who developed the transmission standard is the key innovator. However, a broader interpretation extends the term 'wireless' to mean entirely unplugged playback. This secondary definition necessitates that the speaker unit itself possesses portability and power self-sufficiency, meaning it must contain its own internal, battery-based power source rather than being tethered to a wall outlet merely to receive electrical power.
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