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Welcome to Changzhou  InStar Electronics Co., Ltd. website！
  
      
  


      

      

      


      









      




      

      


      


      



      


      


      
 
      
    
      Product categories：
      		
    
      
		
		Piezoelectric SMD Buzzer  |  
		
		
		Electromagnetic SMD Buzzer  |  
		
		
		Electromagnetic active buzzer  |  
		
      
		
		Electromagnetic passive buzzer  |  
		
		
		Piezoelectric passive buzzer  |  
		
		
		Piezoelectric ultrasonic sensor  |  
		
      		
  
      
    
      
     
  
      

      


      
  
      
    
	  
        
      
          
            
            
      
              
      
                  
      
                    
                  
      
                  
      
                    
                  
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
            
      
              
      
                  
      
                    
                  
      
                  
      
                    
                  
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
            
      
              
      
                  
      
                    
                  
      
                  
      
                    
                  
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
            
      
              
      
                  
      
                    
                  
      
                  
      
                    
                  
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
              
      
                
      
                  
                
      
                
      
                  
                
      
              
      		
              
            
      
                
        
      
      
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