Warm Tips: 1. To turn on the device, please press and hold the power button for 3 seconds. If the unit doesn't turn on after that, please check whether the batteries full charge. 2. To turn on the night vision function, please simply press the IR+ button or increase the IR brightness level gradually, the image in the screen will turn black and white. 3. Keeping the IR on will also drain the battery. If battery power is insufficient, the IR brightness level will decrease automatically accordingly. 4. The night vision device doesn't work through windows because IR beams will reflect. 5. Rotate the lens to manually focus the target to be clearer. 6. You can use them during the daytime too without any problems. Feature: CLEARLY SEE IN 100% DARKNESS - new upgraded night vision monocular feature an 850nm INFRARED ILLUMINATOR and All-Optical System allows you to see animals or plants clearly in 100% Darkness or dim ambient light. With 3 modes: taking photos, recording a video(record sound), and playback, you can capture high definition photos videos with its outstanding optical clarity in the daytime, low light, or night time; Featured 3x fixed optical, fully multi-coated 25mm objective and 5x digital zoom that can easily adjust to the best focal length according to the actual observation distance zoom offers a clearer view of details with higher cost performance. High-sensitivity CMOS Sensor achieves FHD images videos (4032x2520 images 1920x1080@30FPS video); 984FT SUPER LONG VIEWING RANGE - Built-in 850nm infrared LED Illuminator enables you to observe target 984 FEET AWAY clearly in complete darkness without any ambient light. 7 levels of adjustable IR brightness provide optimal visibility at night. The higher-level IR is adjusted, the clearer image is; HIGHLY SOLID QUALITY PORTABLE - The night vision monocular build by ergonomic design helps you focus on your target quickly and accurately with one hand. the solid framework makes the night vision goggles stable for a long time of use and keeps it from slipping out from your hand. It is small and light, put into a pocket easily, making it easy to carry around; Two New Functions: The night vision goggles added a Microphone and Target Reference function; Now the sound around the night vision monocular will be recorded at the same time as the recording video by the built-in microphone function; The target reference function allows you to mark the location of the object being observed at the night; Package List: 1 * Night Vision Device 1 * USB Cable 1 * User Manual 1 * Glasses Cloth 1 * Storage bag