Material of outshell: aluminium alloy +ABS                          

color: golden/tarnish                                                                                    

audio interface：Type-C                                         

area of frequency response：10HZ---48000HZ                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           impendance：16Ω                                

sensitivity：108db                                         

length of wire：120MM±5mm                                          

weight：5g                                                      

wire rod：TPE                                      

speaker：14.8MM metal recombination vibrating diaphragm                           

earphone: drive-by-wire                              

port chip：built-in independent digital decode IC                                                        

support：Samsung GALAXY S8、Huawei Mate9,P10,nova 2、MIUI 6、Nubia Z17、Moto Z2 PLAY、HTC U11、Hammer Nut Pro；Support Type-c port note book,tablet PC.