Starting Microphone (2 Options)                                
                                
                                	1. Main functions: speaking, starting, and recall functions.
2. Dimension: 12cm (L) ×8cm (W) ×3cm (H); 
    Weight: 0.5kg
3. LED waterproofed buttons.
4. Waterproofed PVC shell and special waterproofed anti-corrosion cable.                                
                                
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