Dell Inspiron 15R (5537, Mid 2013) - Manual (Page 13)

Specifications
Views
System
Information
Memory
Ports and
Connectors
Dimensions and
Weight
Computer
Environment
Storage
Touchpad Power Adapter Camera
Communications
Battery
Video Audio
Display
Media-card
reader
Keyboard
Audio
Controller ALC3223
Speakers Two
Speaker output:
Average 2 watt
Peak 2 watt
Microphone Single digital microphone in the camera assembly
Volume controls Program menus and keyboard media-control keys