I have purchased this device on August 2017 https://m.mouthshut.com/1999 rel="nofollow" target="_blank" >@1999/- with 6 months daily 1GB mobile data snd unlimited voice calls. But I have used only internet for my Lenovo Tab, good for Internet use. JoiFi is available for expand external memory card up to 32gb. JioFi used as Wi-Fi for Tab or mobile and connect directly computer through charging cable for net connection. Charging cable is delicate and device is good. It’s have battery backup coming 5 hours. Easy for carrying internet.