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    Analysis of correct wearing mode of bluetooth headset
    

    

      
     
    Earphones were originally two articulation units that were hung over the ear, and a number of varieties have been developed, mostly earphones, earplugs, earbuds, and the newly developed bone-conduction earphones. Headphones are the earliest type of headphones. Earplugs are a revolutionary breakthrough in the development of headphones, and their smaller size makes them easy to use outside. Due to the development
    

     

    
							
 



    
	 
    

           
      
    
						
					
    
				
    
			
    
		
    
		
    
			
		
    
		
    
			
		
    
		
    
			
    
				
    
					
    
						
    
							
    
								
    
									
    
										
    
											
    
												
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