Julyfox Brand Myself Tracker Quad Band GSM GPS Global Location Door Magnetic Alarm 4500mah Power Bank Flashlight (Blue) It is a new concept tracker, with it, your family and your freinds will know where you are,gurantee your security,GPS tracker, global position Door magnet alarm, keep you safe at home or at hotel or anyother place you travel 4500mah long life battery, long time standby, could be used as power bank for your phone, your emergency call saver Flashlight could provide you light, whenever you are outside or any place out of electricity Vibration alarm, voice alarm, remind you to stay alert of surroudings