Hospot 4g airtel. Review on Airtel 4G Hotspot

I'm using the Airtel Hospot device for one year . The speed of that internet hot spot is good . I bought it at a cost of 1300 rs . For my past 1 year of use. I have seen the found following pros and cons regarding the item . First of all speaking about this pros. It is very easy to conect with all devices and connection is super it network is available. It boosts up fastly. It has bold wireless security code. The main points are I have noticed are there is no options to select a particular LTE Brand. It has priority over signal but not the speed . Even when the signal is nice the speed may not be good . The speed is nice when band is above 40 else it connects to the band 5 to 7 and speed will decreased. The WI-fi range is bit low . Battry power is onlybfor 3 to 4 hours and while that time itbstarting to get heated. There is no specific options to block other devices.