Item Type: Phone Microscope Material: Plastic, Glass Size: Approx. 6.9 x 4.7 x 3.2cm / 2.7 x 1.9 x 1.3in Purpose: Stamps, Antiques, Sophisticated Parts, Circuit Boards, etc Battery Type: 1.5V AG3 Button Battery x 6 (shipped with battery) Single Battery Capacity: 38mAh1[Built in Illumination]: The phone microscope features built in lighting, ensuring that you can use it without being influenced by ambient light, allowing for clear and accurate observation. 2[30x Magnification]: The portable microscope has magnification of 30x, providing you with a closer look at the micro world, offering excellent optical performance, delivering clear and detailed images. 3[Compact and Portable]: The LED microscope is compact and lightweight, easy to carry around, can conveniently fit in your pocket or bag, allowing for on the go observations. 4[Versatile Applications]: The 30x zoom microscope is suitable for various applications, including skin and hair examination, industrial testing, educational purposes, the printing industry, jewelry and stamp inspection, etc. 5[Easy to Use]: The phone microscope can be quickly and easily attached to your smartphone camera using the included clip, compatible with most smartphone models, accessible for a wide range of users. 2 xPhone Microscope