How to play the video:The recordings saved on microSD card can be watched on computer with a card reader or directly watch on mobile phone. The recordings saved on Cloud storage can be downloaded and watch directly on mobile phone.Main function: 4K high-definition WIFI wireless remote, 160 degree wide-angle lens, can bend the cable at any time, USB plug and play, motion detection alarm.When microSD card is inserted, the camera will automatically store surveillance video. An 8G microSD card can store up to 2 days recording, an 128G microSD card can store up to one month of recording.No built-in battery,simply connected to power source to achieve long time working and it needs 5V/1A Voltage to activate.14mm small lens, easy to carry and hide, please do not use this device for illegal purpose.Main function:4K HD WIFI wireless remote, 160 degree wide-angle lens, can bend the cable at any time, USB plug and play, motion detection alarm.Read before use:1.Format the microSD card before use. Doing this, however, will remove all data from the card.Make sure to back up any data before formatting.The camera only supports class 10 microSD card with at least an 8GB capacity. It supports cards Up to 128GB.2.You can watch real-time video without inserting a microSD card, but you cannot storage the video in the camera and cannot play back video.3. No built-in battery, simply connected to power source to achieve long time working and it needs 5V/1A Voltage to activate.4.The Camera supports 2.4G Wi-Fi Connection and it does not support 5G Wi-Fi frequency band connection.Relevant Parameter:Pixel: 1200 Mega CMOSLook Resolution Ratio: 4K/1080P/720PMotion Detection Camera :Straight line 5-10 metersMinimal Illumination: 1LUXBattery Capacity: No buildin batteryVideo Duration:plug and play ,24hours long time workingStorage Temperature: -20-80 CelsiusOperating Temperature:-10-60 CelsiusOperation Humidity: 15-85% RHMemory Card Type: TF cardMaximum capacity of memory card: 128GB (memory card don't included)Player Software: VLCPlayer/SMPlayerComputer Operating System: Windows/ OS XMobile Phone Operating System: Android/iOSWeb browser: IE7 and above, chrome, firefox .etcDownload surveillance APP:Search for "HDminicam or P2Plivecam " on APP store from mobile or scan the QR code to download and install.colour:blackMaterial:plasticsize:20.5*5*2.5cmPackage Contents:1* Mini camera1* Card reader1* Instruction manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.