Feature: 1. 4K Resolution: This telescope eyepiece is equipped with 4MP photosensitive chip, supports up to 4K high definition resolution. The clarity is improved through low light compensation, achieving clear and dynamic observation. Suitable for the range of 22mm‑46mm, it can be connected to the telescope device with just a slight rotation. 2. Color LCD Screen: The digital telescope eyepiece is equipped with a 3 inch LCD display screen, providing high contrast images, suitable for daytime viewing of birds and wildlife, also for astronomical exploration. You can use the remote control (not included) to zoom in or out, just click to take photos and record exciting moments. 3. Strong Endurance: This electronic eyepiece has a built in polymer lithium ion battery, with 850mAh large capacity, for lasting endurance, and can support continuous use for 4 hours. Equipped with a USB charging interface, it can be charged using a power bank or phone charger. 4. Easy to Install and Use: This electronic eyepiece camera has a simple structure that can be easily installed on a telescope by gently rotating it, then connected to a phone. Suitable for travel, hiking, outdoor exploration, capturing exciting moments while walking. 5. Perfect Gift Choice: This color LCD electronic eyepiece can be applied to observe the moon and planets at night, or to watch birds or wildlife during the day. For children or beginner astronomers, this is a perfect holiday or birthday gift choice. Specification: Item Type: Electronic Eyepiece Product Material: Aluminum Alloy, ABS Product Color: Black Battery: 850mAh Polymer Lithium Ion Battery (Built in) Screen Size: 3 Inch Color LCD Charging Interface: Micro USB Digital Zoom: 5X Optical Zoom: 5X Full Dark Viewing Distance: Approx. 0.5-800m / 1.6-2624.7ft Daytime Viewing Distance: 0.5m to Infinite Distance Eyepiece Diameter: Approx. 22mm-46mm / 0.87-1.81in Chip Type: CMOS Resolution: 4K Night Vision: Low Light Night Vision Small Memory Card: Maximum Support 128GB (not included). Package List: 1 x Eyepiece 1 x USB Cable 1 x User Manual