Macau is small, but there are still a lot of to see here. Here are some: Senado Square, St. Paul's Church, Monter Fort, F1 Museum, Ama Temple, Macau Tower, Casino Lisboa, Venetain, food street Rua do Cunha, Black Sand Beach, Coloane to see fishing village of macau, etc. You can choose according to your time. For telecom market, are you going to find cell phone and related items?! You can get to Avenida de Horta e Costa and Fortune Tower Shopping Centre nearby Avenida de Horta e Cost. New Yaohan is also a good and authentic choice.