Details Power Mode: USB Charging Operating Voltage: ≤36V Battery Properties: Rechargeable Battery Rechargeable Battery: Lithium Battery-Polymer wireless property: wireless Brand: SKARA contains electronic components/motherboard: Contains electronic components or motherboard Item ID: EH00756 Support 137 languages online translation (all languages can be translated into each other) Easy to Use - Unlike other electronic foreign language translators, the instant two-way translator is easy to use. Simply connect your phone to wifi or mobile data and download the app. Offline mode This mode is a paid subscription mode, where you can order offline translation packages when needed. If you don't use it, you can ignore it.