1# Introduction 2 3The **netsim** network simulator allows developers to run, visualize, test, 4debug, and analyze multi-device and multi-radio radio scenarios across virtual 5devices and accessories. 6 7## Device Types 8 9| Device Type | Description | 10|:-------------------------------------------------------------|:------------------------------------------| 11| [Android Virtual Device](https://developer.android.com/studio/run/emulator) (AVD) | An Android image running in the Android Emulator | 12| [Cuttlefish Virtual Device](https://source.android.com/docs/setup/create/cuttlefish) (CVD) | An Android image running in the cuttlefish emulator | 13| nimble device with HCI connector | host OS C++ apps using Nimbile bluetooth stack | 14| [Bumble](https://github.com/google/bumble) device | host OS python apps using Bumble bluetooth stack | 15| [Bumble](https://github.com/google/bumble) Web App | Browser hosted python apps using Bumble bluetooth stack | 16| Builtin devices | Bluetooth low-energy beacons and UWB anchors built into netsim | 17 18See [Bumble apps and tools](https://github.com/google/bumble/blob/main/docs/mkdocs/src/apps_and_tools/index.md). 19 20 21 22 23