1)Active                                                                                                                       2)Waterproof                                                                                                                3)Cold-resistant(-30℃)                                                                                                   4)The distance can be beyond 300 meters.                                                                       5)Three patterns of warning                                                                                           6)Reflective and flashing with LED lights                                                                            7) Operated by 2pcs of "AA" batteries (It can last 24-48 hours)                                          8) You can choose with LED lights or reflective,   with logo or without logo ,  with words or without words.

1)主動示警                                                                                                                    2)防水                                                                                                                          3)耐寒(-30℃)                                                                                                                4)可視距離可超過300米                                                                                                  5)三種模式的閃爍方式                                                                                                     6)反射或閃爍的LED燈                                                                                                      7)使用兩節“AA”電池（它可持續24-48小時）                                                                   8) .你可以選擇帶LED燈或反光，有logo或沒logo, 有字體或沒字體的