Usage Tips:3X Magnification: The built-in magnifier in the viewer with high light transmittance and true imaging. It can magnify the image 3 times without distortion, blur or loss of details, and the lighting is bright and uniform without color cast. 35mm Slide Viewer: The personal slide viewer is suitable for 35mm positive film negatives and slides and 2X2-inch framed slides. (Please put them in one by one for viewing when using, and cannot put multiple films or slides at the same time) Easy to use: Dedicated slide slots and film inputs allow you to load and view immediately; the quick eject button removes the slide so you can go to the next slide! (When the slide is stuck, please press and hold the release button and wait for the slide to slide out completely before releasing it) Super bright backlit light box: The large viewing area uses super bright daylight LED lighting, and the light is gentle and uniform, which can present vivid and clear image details, and the picture is more delicate and vivid, and the film image restoration is high. Portability: The photo viewer is powered by a DC cable or AA battery. Convenient battery operation allows you to view old slides anywhere. Note: If there is any difference in the words, it will not affect the applicability of the product. The product is not shipped with 4xAA batteries. Colour:Black Material:plastic Package Contents: 1 x Slide Viewer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.