Function

Smart Lighting、Hands-Free Phone、Quality Stereo Music、SOS Alert、Walkie-Talkie

Color                             Bright surface with black & red color、Bright surface with black & grey

Weight                          310g(±5%) American version

                                     310g European version

                                     310g(±5%) Australian version

Head circumference       M:54-58cm L:58-62cm
Vents                             21

Security Certification