Phố Âm Thanh Xưa is a Vietnamese online marketplace centered on vintage audio, nostalgia, and collectible goods. Its listings connect buyers and sellers across cities and regions, with a strong focus on Ho Chi Minh City. The marketplace features classic radios, cassette players and decks, vinyl record players, reel-to-reel equipment, CD and other disc players, amplifiers, speakers, televisions, audio components, replacement parts, and tapes, records, and discs. Recent listings include vintage Sony, Philips, National, Sharp, and other audio equipment, as well as accessories and individual components.

Beyond sound equipment, the site organizes listings for antiques and collectibles, including old fans, typewriters, rotary phones, furniture, memorabilia, watches, coins, banknotes, stamps, cameras, binoculars, and lighters. It also includes categories for household goods, vehicles, café décor, and property in southern Ho Chi Minh City districts and nearby areas. Users can browse by category and location, view seller posts, save listings, and publish items for sale.