Features 1、4K High Definition: Experience wonderful 4K resolution and enhanced low light visibility with this night vision electronic telescope eyepiece for clear, detailed observations. 2、Real Time Monitoring: Stay engaged with a 3 inch color display screen of the digital eyepiece that enables live viewing and precise adjustments for capturing optimal footage. 3、Easy Installation: Effortlessly attach the electronic eyepiece camera to optical telescopes and microscopes with 22mm to 46mm eyepieces for seamless integration. 4、Expandable Storage: Utilize small memory cards up to 128GB (not included) for continuous recording, ensuring long lasting storage capacity for your observations. 5、Versatile Use: Perfect for capturing mesmerizing images and videos of the moon and planets, making this electronic telescope eyepiece an ideal tool for astronomical exploration. Item Type: Electronic Telescope Eyepiece Material: Aluminum Alloy Weight: Approx. 236g/8.3oz Battery: Lithium Battery 850mAh (Shipped with Built in Battery) Charging Port: Type C Screen Size: 3 Inch Digital Zoom: 5 Levels Dark Field of View: 0.5m to 800m Objective Lens Diameter: 22mm to 46mm Resolution: 4K Small Memory Card Maximum Support: 128GB (Not Included) Package List 1 x Electronic Telescope Eyepiece 1 x Instruction Manual 1 x Charging Cable