Hello Friends Reliance JioFi Is Very Good And Best Speed Internet In Device. And Its Body Is Vey Strong. Its Black Colour Is Very Nice. Its All Bottons Working VERY Well. It Connection Is Very Good Working. And Its Service Is Avalivale In All India. I Buy This Product Online. And I use This All Day. Its Battery Bacup Very Good. Friends Really This Device Is Better Than Other Internet Devices. I Have 3g Phone But I Use 4g Speed With Use This Device. Really Thanks Relince Company