This is a wireless router. It runs for 4 hours on a charge. You can carry it anywhere you want. I bought it 3 months ago. Packages start from 500 Taka. There is no written warranty, but if there is any problem for any reason, you can change it at any time by talking to customer care. Their service men are always on call, although there is no network cutting problem as it does not require any wires. I bought it at a pharmacy, but I am selling it because the medicine company provides free Wi-Fi. It cost 4900 Taka in February, though it is 4500 Taka now. The SIM is registered inside, and you will get all papers and the box.