Huawei 4G+ router works on all SIM cards. Internet Speed: Supports Category 4 (Cat4) technology, with download speeds up to 150 Mbps and upload speeds up to 50 Mbps. Connected Devices: It can broadcast Wi-Fi (2.4 GHz band) to connect up to 16 devices simultaneously (phones, tablets, computers). Battery: 1500 mAh capacity, lasts up to 6 hours of continuous use, and about 300-350 hours on standby. Ease of Use: Works with all telecommunication networks (unlocked for all SIM cards) and does not require complex settings; just insert the SIM card and turn on the Wi-Fi. Add-ons: Supports SMS receiving and sending features and control via the Huawei app.