Features: voice function it supports voice typing, voice translation and voice search functions, convenient to use. 28 Translation languages equipped with powerful translation engine, which supports not only the translation of chinese to other languages, but also the arbitrary switch between 28 languages. Dual mode connection 2.4G wireless connection mode is stable with fast transmission speed, bt 4.0 Chip also provides stable wireless transmission, so it becomes your powerful assistant in office. Powerful performance built-in translation engine ensures the accurate translation results, and fluent word structure, which brings more convenience. Mute design user-friendly mute design, you will not affect others even at night. Adjustable dpi three adjustable dpi 800-1200-1600dpi to meet different needs. Delicate appearance ergonomic design, streamlined shape, delicate paint baking process, feel comfortable.<Br/>specification: name: voice mouse color: black/grey(optional) material: abs connection method: 2.4G&#43;bt voice recognition distance: 1.5M dpi: 800-1200-1600dpi supported language: 28 supported system: windows 7/8/10/xp battery: 1*aa battery(not included) item size: 11.5 * 6.5 * 3.1Cm /4.53 * 2.56 * 1.22In item weight: approx. 62.4G /2.2Oz <br/>packing list: 1 * mouse 1 * user manual