There are many hand-held ones, which are generally considered better. Both IBM and Sony are better, and the price is around 10 thousand. If it's just stock trading, you don't need to buy too good one. I guess the landlord means using wireless internet access? Wireless Internet access has little to do with computer performance. Generally, it is related to the signal station. Go online to see if the signal at your place of work is smooth and whether the wireless network card you bought is good. It is recommended not to use wireless, wireless is never as good as wired, and ASUS and HP can do the same. Lenovo's service is good, but it is said that repair rate is higher.