Feature: 1. Fun and useful USB eyepiece camera allows you to transfer the real-time view through your telescope to a laptop or PC and capture amazing digital movies and pictures 2. Share the view of bright planets, the moon and terrestrial targets through your telescope with friends, family and other astronomy enthusiasts. An affordable introduction to the rewarding hobby of astrophotography. Perfect for moon and planet images - not suitable for deep space images Highly versatile - Fits in any 1.25" telescope focuser or 1.25" step-down adapter 3. for Windows XP/Vista/7/8/8.1 Operating System 4. This is a high-performance web digital product guaranteed by our technology and quality. It is a plug and play product for real-time data transmission to PC via USB port. It has high resolution and fast transmission speed, it is stylish and easy to carry, it just brings intimate and comfortable life experience with your distant friends and families! System requirements for IBM PC or compatible PC or laptop with USB port Pentium 200 or higher CPU for Windows 98SE/ME/2000/for Windows XP/Vista/7/8/8.1/10 Operating system CD-ROM drive if the computer is not equipped with software 32 MB or higher memory Support DirectX VGA card Specification: CMOS chip type: Color CMOS for image sensor 3 High-power LEDs for better image in the dark Video format: 24 bit RGB Interface: USB Lens: 1.25 inch/31.7 mm Video: 640x480 pixels up to 15 frames/sec (VGA) Frame rate: 320x240 up to 30 frames/sec (CIF) Sensor size: 4.86 mm x 3.64 mm S/N ratio: less than 45 dB Dynamic range: less than 72 dB Focus range: 5 cm - to infinity Auto white balance Auto color compensation Dynamic for image Manual for focus Supports system: win98/Me/2000/XP/Vista/7/8/8.1/10 Package includes: 1 x Digital Camera