Browse administrative division maps and query detailed information about regions. Search by keywords, browse by administrative levels, or use拼音 indexing. View historical changes and review commonly mispronounced place names.
Access high-quality audio files and curated playlists from professional engineers and audiophiles. Connect to audio devices via Bluetooth for control and parameter adjustments. Manage device settings, EQ, delay, and frequency alignment.
A flashlight with multiple lighting modes including bright, flashing, blue, disco, and adjustable brightness. Features an AR ruler, level, compass, and warning sign. Includes a magnifier and telescope.
