Note:1. Package doesn't comes with the charger. Please buy a extra one or use a universal USB port adapter or charger for charging.2.Only supports 2.4GHz wireless band. If router is 5GHz, please switch to 2.4GHz, and make sure DHCP is on.3. The battery is a backup battery to keep the camera working when the power sudden blackout. We do not promise the working time of the battery. We strongly recommend you to keep the USB power on all the time.Specifications:Pixel:1200 Mega CMOSVideo Format:AVIVisual Angle:140 degreeMotion Detection:Camera ShootingCompressed Format:H.264Recording Range:5 Square MetersConsumption:240MA/3.7VTemperature:-20-80 degree centigradeOperating Temperature:-10 to 60 degree centigradeOperation Humidity:15-85%RHMemory Card Type:Micro SD cardMaximum capacity of memory card:128GBPlayer Software:media playerMobile Phone Operating System:Android/iOSWeb browser:IE7 and above,chrom,firefox safari.etcPhone Can View Max 4 Clock Cameras At The Same Time.Package Includes:1*Clock Camera1*USB Charging Cable1*Instructionnote :4K real-time viewing is 4K pixels, and saving to the memory card is 1080P pixels,Save to the memory card will be compressed, the corresponding pixels will also become weakAbout the 4k camera: We put a protective film on the camera before shipping.This film is used to prevent scratches on the screen during the shipping process.The protective film should be removed during use.