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. 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. Keeping the IR on will also drain the battery. If battery power is insufficient, the IR brightness level will decrease automatically accordingly. The night vision device doesn’t work through windows because IR beams will reflect. Rotate the lens to manually focus the target to be clearer. You can use them during the daytime too without any problems. 1 x Night Vision Device 1 x Neck Strap 1 x Data Cable 1 x User Manual 2 x 18650 batteries 1 x 32GB SD Card 1 x Card Reader. Upgraded Portable 1080p Night Vision Binoculars. The night vision binoculars added a Microphone and Target Reference function; Now the sound around the night vision binoculars 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; It utilizes an infrared-sensitive CMOS sensor, for providing outstanding image quality. The night vision binoculars with photo shooting, video taking, and playback functions for many applications including night hunting, reconnaissance, security, surveillance, camping, boating/fishing, bird watching, camping, and wildlife observation. Microphone and Target Reference Function. Now the sound around the night vision binoculars will be recorded at the same time as the recording video by the built-in microphone function; After the power turned on, short press power button to turn on/off the target reference function. The target reference function allows you to mark the location of the object being observed at the night. 7 Adjustable Levels IR illuminator. 7 IR levels are adjustable according to the ambient light. After the power turned on, short press the [IR+] button to active the infrared light, press it again to increase the gear until it reaches 7 gears (maximum). The higher the infrared light gear provide stronger brightness and an increased viewing range.