If our have problems about your product, please let us know us immediately, we will arrange the replacement or refund your every penny! 1, ● short sound (one second) 2, ■ long tone (more than 3 seconds) 3, within 2-3 seconds interval command whistle 4, between instruction at intervals of 30 seconds or more Universal International SOS emergency: three short, three long, three short, continue to repeat one minute. Alpine International General emergency: Six short, continue to repeat one minute. Universal International Alpine emergency signal and International SOS emergency signal can be generic, but belong to No. 6 SMS Alpine signal, SOS is a versatile signal. Communication (T): ■ for the team contact, in order to determine the orientation of each other, after receiving a signal is issued on behalf of the Table received signal; Collection (U): ● ● ■ set the direction of the signal sent; Before entering (V): ● ■ rest issue represents the starting team, marching issue represents accelerate progress; Former team waiting (W): ● ■ ■ for teams traveling long distances, it is required to wait before the team after the team; Request support (S): ● ● ● When faced with difficulties to seek help issued by the received signal to sound communication (T) said it would reply to the support; Seeking help (SOS): ● ● ● ■ ■ ■ ● ● ● This is the international SOS code. Report position, with former team after team or contact: After ■ ■ ■ If no response is received signal can be repeated three long signals received A minute later, in response to a signal report Ping: three short, can be repeated after one minute; More signals, we all know the meaning, but don't blow casually， in addition to rescue signal, other signals from the general before, during and after the blow persons, the use of reflective mirror and a flashlight and whistle same.
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