Feature: 1. VERSATILE COMPATIBILITY: This telescope camera can be easily mounted on optical telescopes and microscopes with 30mm‑50mm eyepieces. Simply rotate to mount and turn your device into a camera for catching excellent images and video, perfect for lunar and planetary photography. 2. WIFI UPGRADE: This digital eyepiece is WiFi enabled, eliminating the need to plug in cables, simply connect to its WiFi hotspot from your phone to view and control the eyepiece, supporting simultaneous viewing on two phones! 3. HIGH RESOLUTION IMAGING: With a 4MP sensor chip, it delivers up to 4MP stills and 2K HD video at 2304x1269 30fps. The planet camera improves low light sharpness with dark light compensation for clear, dynamic viewing. 4. LARGE CAPACITY BATTERY: The WiFi wireless digital eyepiece has a built‑in 800mAh Li‑ion battery that supports up to 4 hours of photo shooting, and comes with a USB C charging port so that any cell phone charger can charge it. And supports mobile power, such as rechargeable battery. 5. SUPPORT MEMORY CARD: WiFi telescope eyepiece camera supports up to 128GB memory card expansion. In addition, take your astrophotography to the following level with features like interval shooting and time lapse video recording. (without memory card) 6. EASY TO USE: (1) Install the WiFi telescope camera on your telescope or microscope (make sure it is charged). (2) Scan the QR code in the installation or download the app at for iOS App Shop, for Google Play. (3) Open the app, click "Camera", then click "Retry" to search for the product WiFi. (4) Select the WiFi named "for ZHENYI‑XXXX "and enter the password "12345678". (5) After connecting, click "Video" or "Photo" to record. Specification: Item Type: WiFi Wireless Digital Eyepiece Material: ABS Battery: Polymer Lithium Ion Battery (Built In) Capacity: 800mAh Sensor: for CMOS Pixels: 4MP Video Resolution: 2K 1080P Photo Resolution: 1920x1080 2304x1296 Video Format: MP4 Lens Horizontal Angle: 5 Degree Memory Card Slot: Maximum 128GB Memory Card (Without Memory Card) Power Supply Port: USB C Applicable: for 30mm-50mm/1.18-1.97in Monoculars, Binoculars, Microscopes, Astronomical Telescopes Apps: Scan the Code to Download or Search for Viidure in the App Shop. Package List: 1 x Electronic Eyepiece 1 x USB Cable 1 x Instruction Manual