KUMU wide angle reaview mirror Operating voltage:12v/24v Visible area: 300mm Storage temperature :-30°C~+80°C Operating temperature:-10°C~+60°C Power Supply: Rechargeable Lithium-Ion battery / USB Car Charger Language: English (default) / Russian / Japanese / Simplified Chinese /Traditional Chinese / French / Spanish / Italian / Portuguese / Turkish / Greek / German DVR View angle:140° compression format: of H.264 Support TF card:maximum support to 32G(not included) Storage format: Memory / TF card (choose one format) frame rate: 15FPS/30FPS (default setting) Frequency: 50Hz(default)/ 60Hz adjustable Recording time: 2 min (default) /5 min/ 15 min, stop recording when memory card full auto time/ date update: chooseable on(default)/ off, take video without time and date if choose"off" Support motion detection Support sound recording