PRODUCT NAME:HAND-FREE STEREO HEADPHONE                             
PRODUCT TYPE:DYNAMIC HEADPHONE                     
SPEAKER DIAMETER: ￠14MM  6U                        
FREQUENCY: 20HZ-20000HZ                 
PRODUCT IMPEDANCE: 32Ω                                
SENSITIVITY: 103±3dB                               
MICROPHONE:-42±3dB                                
PIN: ￠3.5mm, four-level pin                             
LENGTH:1.2M                                                  
MATERIAL:TPE                                              
FUNCTION:WATERPROOF,NOISE CANCELLING,MICROPHONE,LINE CONTROL ,SUPPORT MUSIC                                                  USE FOR:SAMSUNG,IPHONE,NOKIA AND SO ON                                           
WEARING TYPE:IN-EAR