Outdoor retroreflector: outdoor activities and floating signal mirror, when the weather is clear, the signal can travel over 100 kilometers, signals are visible from miles even in hazy weather Multi-function signal mirror: suitable for outdoor activities and emergency uses, camping, , skiing. Retroreflector: the sight signal mirror is an essential option in any survival emergency kit. Small signal mirror: it is suitable for long-distance communication in the field and sending signals for survival. Emergency mirror: when the weather is clear, the optical signal transmission distance can than 100 kilometers.
