JioFi is a small router which is very easy to carry.From it you can send SMS or call any number through jiovoice call app.Its price is 1999 Rs.From it you connect your laptop, smartphone, tablets even your smart tv.you can connect 32 device through them.It gives a 2300 mAh battery which backup is 5-6 hours.It also support a chip.it is helpful to 2G or 3G smartphone user.it gives 4G speed downloading