If you use Jenkins and VirtualBox, I suggest you to try GenyMotion Android Emulator.
Features:
- Easy to install/use
- Can use many sensors
- Can integrate with Eclipse/Android Studio
- There is a cool command line interface, where you can modify your test environment, for example sensors and battery level
A GenyMotion emulator is a VirtualBox virtual machine, so you can start/stop/suspend it like a VirtualBox machine.