This jiofi is really good now there is no tension and no worry if you dont have 4g phones because you can use 4g speed internet in 2g and 3g phones by this jiofi it provides great speed to the users you can easily connect with your phones and can easily enjoy the net speed. this jiofi supports only jio sim at a time one jiofi can connect 32 users together. this provides 1 year warrenty and you can easily get service centres and support from the company.