1.Violence in and force the lock , it will  automatic dialthe phonepreset;                               2.You can set 6 different phone or mobile numbers according yourneed;                                                             

3.It will call the phone number preset bycycle;                                                 

4.Through phone or mobile can control the alarm soundwell;                                                                                                                     

5.The alarm volume can reach 120decibels;                                                     

6.The wireless access distance of System host is 100 meters(open);                                                                               

7.Component: 1 alarm lock 1 host power telephoe linesspecification