Can i know all device available in store online before i visit the place?

Y'ello. You can purchase the MTN 4G MIFI device;

The MTN LTE MiFi connects up to 10 Wi-Fi enabled devices at the same time – Smartphones, Tablets, Laptops, Computers, Game Consoles, Smart TVs, etc. MTN LTE MiFi can be used for home or Small Business.

MTN LTE MiFi Offers:

FREE 30GB data (valid for 30 days) upon purchase and activation.
After activation of the MiFi, you will get a 100% bonus on data bundles below N5000 purchased for 6 months. The device costs N12,000

The Hynetflex device:

HyNetflex is MTN’s broadband internet service and it is ideal for:

Small and Medium Enterprises (SMEs)
Small office Home office (SoHo)
Home users
Heavy data users (video streaming, gaming, etc.)

Enjoy HyNetflex 4G+ router + 120GB = N25,000

HyNetflex lets you enjoy the following benefits, among others:

100% data bonus for the first 3 months of activating the service
Connect anywhere across the country, in 3G and 4G coverage areas, at superfast speeds
Connect multiple users from a single router
Activate flexible data plans that suit your needs
Stream, upload and download with ease
https://mtnbusiness.com.ng/hynetflex