主权项 |
1. A portable safety device comprising:
a case having a space defined therein, two holes defined through a wall of the case, a shackle removably inserted into the two holes, the space having a control unit located therein and the control unit located corresponding to the two holes; a lid movably mounted to the case and closing the space; a combination lock for locking the lid to the case by combination numbers, and a general lock for locking the lid to the case by using a key. |