If shopping is on your calendar, then Causeway Bay is a good option for relatively inexpensive items. Shopping Malls have exclusive brand name products if that is what you are looking for. Anyway, Causeway Bay is very crowded and has many small mom and pop stores, kiosks and hole in the wall shops. You may find most electrical, phone and accessories but it will all be from China. Check labels and know names so you have something that will last a few months once you arrive at home. And know electric currents also. Most products will fit HK currents. An interesting walk around even if not shopping. Many restaurants, bakeries and coffee shops. All flat surfaces for wheelchair accessibility. And a big SOGO Department Store.