Jio fi device very usefull device, it is simple to connect with your laptop.jio fi speed has It’s amazing download speed up to 150 Mbps and upload speed up to 50 Mbps.It has been provided multi-color LEDs to give information on battery strength, signal strength & Wi-Fi. With JioFi we can enjoy Video calls, HD Voice Calls and(5+1) Audio and(3+1) Video conferencing even on your 2G/3G smartphones. Download Jio4GVoice App from Play Store to experience the power of True 4G as a window to digital life.Make Video, HD Voice calls, and SMS on your smartphone using Jio4GVoice App.Finally, it has the best in class battery(2600mAh) supports 7 - 8 hours of surf time.