This is the FUJISOFT FS040W. It's a mobile router with a SIM card slot. Please check the details on the Fujisoft website. ① There is no instruction manual. ② I charged it to 100% and turned it off. When I turned it on again after a month, it still showed 100%. I used it for about a year. I can't guarantee it, but the battery may still be fine. ③ The protective film on the main unit's LCD and the charger's protective film are still attached from when I bought it. I used a protective case from the beginning, so I think the front of the main unit is still clean. ④ You may feel some signs of use in the following places: ・Box ・Back of the main unit ・Charger and cable ⑤ This is my first time listing, but I will ship with sincerity. Please consider this with understanding. Thank you. - Brand: FUJISOFT - Model Name: FS040W - Accessories: Charger USB cable Battery Protective case - Condition: Used for about 1 year Thank you for viewing.