Note :No batteries allowed to deliver by transport company(without button batteries)All batteries are not included in package .Our batteries are button batteries, Model:2032;Voltage:3.3V;Thickness: 3mm;Diameter: 20mm.yourself need to buy 2032 batteries.If you have any problems,please via amazon or skype:ydm810921 reply within 24 hours | DVR for Cloud: Cloud ---> xmeye.net/index DVR for CMS Client: DVR Software ---> www.xiongmaitech.com/en ---> Support ---> Complete software DVR for XMEye App: Note: User via iPhone/iPod/iTunes in the App Store, search "xmeye" download and install Note: User via Android phone/pod/search xmeye and install in Google Play Store. | If item Can't work,you have obligation to send it back to our warehouse or china to us to test.If we tested it real have problem,we will pay all cost(After confirm then to pay).Or re-send you one new parts to change at the first time.About the HDD:The security DVR must work with the security HDD,if you use the PC HDD,most will be not work.Your HDD must be brand new,we will not accept any dispute based on the old HDD. | If get other compatibility issues, we will not note again, please ask us and confirm first, then order.About the item case and inside. The electronic products is in update everyday, some times will have place changed,This will not influences to use. We will not notify you separately.