Hello friends I am using this product since 1 months with best speed. You can connect 10 users on wifi with portable device and they can also experience the 4g internet speed on hotspot. Its very easy to use. You can also make calls with jiofi only you need to download the Jio4Gvoice from playstore install it then use jiofi number to login then you can make free calls over jiofi from jio4gvoice. because its a plug and play device you can create your hotspot any where. Best money back device as internet usage is free of cost as committed by Jio. Only you need to spend 1999 rs. Best device.