Brother Mobile Color Page Scanner, DS-820W, Wi-Fi Transfer, Fast Scanning, Compact and Lightweight MULTIPLE MEDIA HANDLING: The DS820W can easily scan photos, documents, receipts, business cards, ID cards, and more, up to 8.5 wide  32 long. WI-FI TRANSFER OF SCANNED DOCUMENTS: The DS-820W mobile scanner can send scanned documents wirelessly to your computer or mobile device(1). COMPACT & LIGHTWEIGHT: The DS-820W has a sleek design, measuring 12 in length and weighing less than one pound. PRECISION SCANNING: The Brother DS-820W Mobile Color Page Scanner can produce black & white and color scans of resolutions up to 600  600 dpi. MULTIPLE POWER SOURCES: The Brother Wi-Fi mobile scanner is powered by a rechargeable Li-ion battery or by USB cable.