The main purpose of the product: easily read books, newspapers, magazines, maps or medicine bottles, medicine box instructions, etc. Magnification: 3 times to 15 times magnification (4 files adjustment) Display: 3.5 inches, 4:3 display ratio Screen resolution: 320 240 Light source: with LED light focal length: 1 cm Color mode: full color black on white white on black yellow on black yellow on blue blue on white blue on yellow Image sensor: 1 4" 640X480 Lens: 60 degrees Image freeze: freeze release Video output: can be output to any monitor with TV input Automatic shutdown: no key operation after 10 minutes Power consumption: 1.4W Product weight: 112g (without battery) Product size: 103 76 19mm Battery: Lithium battery: 1050 mAh Continuous use time: 2.5 hours Charging time: 3.5 hours Accessories: power adapter, video cable, carrying case, strap, lithium battery, wipe cloth, manualCan be connected to a large TV screen: Screen Magnifier is equipped with an AV cable to connect to the TV, and enjoy the big screen. Connecting to a TV can get a larger magnification, making reading easier and more comfortable. 7 color enhancement mode options: The humanized design machine has a variety of color mode options. The color enhancement mode is used for people with poor sensitivity and weak color. You can enhance the contrast with the color sensitivity, choose the color mode that suits you , and use it to read more clearly, Not easy to produce visual fatigue. Wide-angle design infinite magnification: Portable Digital Magnifier provides 3-15 times infinite magnification to adapt to different text sizes and different people. The wide-angle design can display more text to make reading more continuous and complete. Removable large-capacity battery: Handheld Digital Magnifier w Intelligent power-saving battery is more sensitive and battery life is more guaranteed. Large-capacity battery, power-saving design, battery-powered continuous working time: 2.5 hours, charging time: 3.5 hours. Reading Aids Magnifiers: Designed specifically for people with low vision and the elderly. There are seven different color modes. The 3.5-inch color screen can be carried with you, and can be connected to the TV output to expand the field of view. You can watch it directly on the book without a stand.