1. Longlasting battery life: The NVS20 monocular night vision device features a builtin lithium battery offering an impressive 8hour runtime. Whether indoors or outdoors, it can also be charged using a power bank, ensuring worry use. 2. Portable and ergonomic design: Designed for handheld use with a wrist strap to prevent accidental drops, this monocular night vision device is compact. Its palmsized structure ensures comfortable handling and easy portability, making it convenient to carry anywhere. Additionally, it can be mounted on a tripod for enhanced image stability. 3. definition viewing: Equipped with a resolution 5.4inch IPS screen, the NVS20 delivers stable and razorsharp images and video playback. Unlike traditional tubebased devices, it provides clearer observation while reducing eye strain during prolonged use. 4. Day and night observation: The NVS20 allows for observation in daylight as well as lowlight or pitchdark conditions. It includes an infrared illuminator with a range of up to 300 meters in darkness, featuring six adjustable IR settings and an 850nm infrared lamp for performance.