... lithium battery to store up energy ,also uses the PIR sensor thatintegrates digitization and saving energy .In addition, the lightweight and ... supply,so it can be widely used in mobile phone,camera,MP3,MP4 . For example, we can use the lithium battery ... analogous condition. As for the design, PD-SLL136L adopt the sensor technologyfrom human movement ,the common description as follow: when switch ...