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telephone with a microphone and speaker separate from those in the handset
This category has the following 3 subcategories, out of 3 total.
Media in category "Speakerphones"
The following 3 files are in this category, out of 3 total.
- Acess control. Speaker connected to A0 (analog) and GRN (analog ground).jpg 3,264 × 2,448; 1.63 MB