Very fast shipping and well packed. The system came with 1 x manual, 1 x 110-220VAC/12VDC power adapter, 1 x keypad/control unit, 1 x wired alarm siren, 2 x motion sensor, 10 x door/window sensor, 4 x key fob remote. I am testing this system before putting in service and I am very pleased with its features. It is a great system for this money. The installation is easy and can be done by anybody with minimal technical skills. The door/window sensors have a 23A 12VDC battery (like those used in car keyless remote). The sensor works even the voltage drops to 7.5VDC which is great. When the voltage drops below this level, the second LED turns on so you will be aware when needs a battery replacement. This can not happen too often as the sensor drains very little current, well, it depends to how many times it triggers. The motion sensors have a 9VDC battery. The control unit has a backup battery (NIMH packed 7.2VDC/300mAh) which keeps the system running when a power outrage occurs. Maybe it should have a higher capacity battery, there is plenty of room in the control unit. The siren is loud enough to alert your neighbors. I would attach longer wires to this siren or buy a wireless alarm siren. On the back of the door/window sensors is a double sided sticky foam tape which I removed it and drilled holes for screw fitting, I don't trust this tape, the sensor may fall off and trigger the alarm. I haven't yet tested the phone dialing feature, but should not be a problem; I will update my review if necessary.
Depends on your needs, you can program this system in many ways, different configurations, it is a great product.