input voltage：100 -240V This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com Android 6.0 (Marshmallow) OS, 8.0 Inch 2048x1536 (QXGA) Super AMOLED Quad 1.8GHz + Quad 1.4GHz, Octacore application processor 32 GB Flash Memory, 3 GB RAM Memory Battery Type and Size- Li-Ion 4,000 mAh, Music Play Time- Up to 74 hours, Video Play Time- Up to 14 hours, Internet Use Time- Up to 10 hours