Important Safeguards and Warnings1....Electrical safetyAll installation and operation here should conform to user local electrical safety codes.The product must be grounded to reduce the risk of electric shock. We assume no liability orresponsibility for all the fires or electrical shock caused by improper handling or installation.2....Transportation securityAvoid Heavy stress, violent vibration, water splash during transportation, storage and installation.3....InstallationDo not apply power to the NVR before completing installation.Do not place objects on the NVR4....Qualified engineers neededAll the examination and repair work should be done by the qualified service engineers.We are not liable for any problems caused by unauthorized modifications or attempted repair.5....EnvironmentThe NVR should be installed in a cool, dry place away from direct sunlight, inflammable, explosivesubstances and etc.This series product shall be transported, storage and used in the specified environments.6. AccessoriesBe sure to use all the accessories recommended by manufacturer.Before installation, please open the package and check all the components are included.Contact user local retailer ASAP if something is broken in user package.7. Lithium batteryImproper battery use may result in fire, explosion, or personal injury!When replace the battery, please make sure user are using the same model!Before user operation please read the following instructions carefully. Installation environment Keep away from extreme hot places and sources; Avoid direct sunlight; Keep away from extreme humid places; Avoid violent vibration; Do not put other devices on the top of the NVR; Be installed in well ventilated place; do not block the vent. AccessoriesCheck the following accessories after opening the box: Please refer to the packing list in the box *