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                                                            | Brand: | Yealink | 
                                                                                                                            
                                                            | Product color: | Black | 
                                                                                                                            
                                                            | Description: | Connection type: wired, headphone type: headset, connector: USB, microphone functions: noise-cancelling microphone, kit: extension cable | 
                                                                                
                                                                                        
                                                            | Connection type: | With wire | 
                                                                                
                                                                                        
                                                            | Connector: | USB | 
                                                                                
                                                                                        
                                                            | Impedance: | 90 ohm | 
                                                                                                                            
                                                            | Sensitivity: | 96 dB | 
                                                                                
                                                                                        
                                                            | Length of cable: | 1.2 m | 
                                                                                
                                                                                        
                                                            | Set: | Extension cable | 
                                                                                
                                                                                        
                                                            | Mount type: | Headband | 
                                                                                
                                                                                        
                                                            | Max power: | 80 mW | 
                                                                                
                                                                                        
                                                            | Maximum playback frequency: | 8500 Hz | 
                                                                                                                            
                                                            | Minimum repeatable frequency: | 112 Hz | 
                                                                                
                                                                                        
                                                            | Headphone type: | Headset | 
                                                                                
                                                                                        
                                                            | Maximum microphone frequency: | 6300 Hz | 
                                                                                                                            
                                                            | Minimum microphone frequency: | 100 Hz | 
                                                                                                                            
                                                            | Microphone directivity: | Directed | 
                                                                                                                            
                                                            | Microphone functions: | Noise canceling microphone | 
                                                                                                                            
                                                            | Microphone sensitivity: | -38 dB | 
                                                                                
                                                                                        
                                                            | Number of emitters: | 1 | 
                                                                                                                            
                                                            | Cable connection: | Unilateral | 
                                                                                                                            
                                                            | Type of acoustic design: | Semi-open | 
                                                                                
                                                                                        
                                                            | Extension cable length: | 0.9 m | 
                                                                                                                            
                                                            | Connector shape: | Straight |