DongShan helps users start and manage a device-level VPN connection on Android. Choose an available node, tap Connect, and follow the connection status directly in the app. When the VPN is active, DongShan displays an ongoing notification so the connection remains visible and can be stopped at any time. Main features: • start or stop a VPN connection after Android system approval • choose and switch available VPN nodes • view connection status and session duration • check current IP and basic network location information • run a speed check for the current connection DongShan starts the VPN only after user action and Android VPN authorization. The app uses Android VpnService to create and manage the VPN session. During active use, DongShan keeps a visible notification so users can clearly see the VPN status and disconnect whenever needed.