Warm Tips: 1.Our video camera set has been equipped with a 32G SD card, please format it before use,, maximum support for 128GB SD card 2.Please fully charge the battery and microphone, and make sure that the microphone and audio recording function are turned on. 3.When all cameras are used as web cameras, and focus range: 3.3ft ~ infinity. 4.If the video camera is not recognized by the computer due to system compatibility issues, please link us. 5.Please read the instruction manual carefully before use. Upgraded Autofocus Function Our autofocus function has been upgraded to the latest version, and autofocus can be achieved without any manual operation. Please contact u*s through the Amazon Email to receive the installation package and detailed operation steps to upgrade: Login your amazon account> choose "Your orders"> find the order ID> click "Contact seller". Wi-Fi connection Downloading "XDV PRO" APP, it will turn your phone into a remote to control the 4k camcorder. 2.4G Wireless Remote Control Equipped with a 2.4G remote control, you can remotely control the video camera at any angle to take pictures and record videos. No members are excluded from the group photo and no more asking people around to take photos for you. EXTRAL microphone The external microphone helps to pick up the sound accurately, effectively reduce noise and improve sound quality, suitable for interviews, meetings, streaming media, etc. Read more UHD 4K 60FPS & 48MP Camcorder This video camera with UHD 4K 60FPS video resolution , and 48MP picture pixels .It is a veritable 4K camera, More importantly, it has AF autofocus function, that is something other cameras can't have. 32G SD Card & Battery Included Included 32g SD card( max up to standard 128G), 2x1500mAh batterie Foldable Handheld Stabilizer The camcorder is equipped with a handheld stabilizer, which can help you record low-angle video stably and reduce jitter, that is perfect for making videos in moving. Read more Read more Remote Control: angle is 360°, distance up to 49 feet. Memory Card: U3/Class 10 level real SD card is suggested(Please do not buy Micro SD cards). Video Format: MP4 Video Resolution: 4K 60/30FPS, 2.7K 30FPS, 1080P 60FPS/30FPS 720P 120FPS/60FPS/30FPS Image Format: JPEG Picture Resolution: 48M/30M/24M/20M/12M/8M/5M/3M Digital Zoom: 18X f=7.36mm Language: Chinese/English/Japanese/Korean/Russian/German/French/Italian/Spanish/Portuguese/Thai USB Interface: 2.0 HDMI Interface: Support AF: Support ISO: Auto/100/200/400/800/1600/3200/6400 White Balance: Auto/Sunny/Cloudy/Incandescent/Fluorescence Exposure Setting: -3.0 to +3.0 OS requirements: Windows 98/98SE/ME/2000/XP/Vista/win7/win10/Mac