Happyyami 2pcs Retroreflector Mirror Emergency Use Signal Mirror for Outdoor Activities Camping Hunting Skiing Instruction Manual Included

Retroreflector: suitable for outdoor activities and emergency uses, camping, hunting, skiing,accessory reflector mirror
Outdoor: there is a manual on back side which show you how to use this mirror,emergency mirror
Reflective mirror: with aiming function, signal transmission is accurate and fast,survival mirror
Field: it is suitable for long-distance communication in the field and sending signals for survival,signal mirror
Small signal mirror: when the weather is clear, the optical signal transmission distance can than 100 kilometers,survival emergency mirror