Cat4,150Mbps Battery 1500mAh WiFi 2.4GHz Can connect up to 16 devices Huawei device 50 Riyals The green light on the device means it is fully charged. Red means no signal because there is no SIM card, a data SIM card must be inserted. If you insert a data SIM card, you can connect 16 devices. I used it in the office at work and my colleagues and I connected to the internet through it. Now I don't need it.