... prevention security of telecom mobile Unicom, digital city, digital camera counters, GPS counters, MP4 counters, appliances hypermarkets, supermarkets ... .Product Height: 100*70*140MM 2.Internal Battery type: 3.7V rechargeable lithium battery.3.External power adapter ... Display Charging Function apply to : Mobile Phone , DC camera , Tablet PC3)Disconnection Alarm Function:Three Contacts disconnection ...