A talking pen-shaped scanner for reading and translating texts Works by charging, battery: 3.8V / 1200mAh When fully charged it works for 3-4 hours Android and IOS system support It has 16GB memory, store 4 languages (Chinese, English, Japanese and Korean) for offline use You must be online to translate it, it translates 112 languages in voice conversations, and 55 languages in written texts. Text can be read aloud while scanning 2.98 inch touch screen for displaying and translating texts Available in blue