Practical Adventure Mirror Outdoor Emergency Survival Ref...

Description:

100% Brand New and high quality

Acrylic material,

Toughness is not easy to break,

Reflective effect is good,

Survival whistle,

When used in emergency,

Especially suitable for field long-distance communication, sending reflective survival signal,

With aiming function, precise and fast signal transmission

When the weather is fine, the optical signal transmission distance can reach more than 100 kilometers.

When there is light on a cloudy or night time, ...