1.Name:GPS safety helmet
2.Wheel ratchet with Six point fix plastic harness
3.Color:Red ,Yellow Or Customized
4.Micro SIM card with 2G network
6.Harness size: 52-63 cm /0.8kg per pc                   
7.Accurate locations/remove alarm/2-Way calls/SOS call/Remotely taking photos via APP/IP67 waterproof/Talking clock button/GPS+WIFI+LBS triple positioning/Clock in/ out for work/Fall detection/APP real time tracking/Web platform to manage all helmets