Most people grab their smartphone's volume buttons only when they need to turn music up or down during a playlist. These handy side keys handle separate audio streams depending on the context. When ...

hand holding a phone with cover on, showing the volume button - abdallah abdelal/Shutterstock While your smartphone is probably the gadget that you use the most, there are several little hidden ...

While your smartphone is probably the gadget that you use the most, there are several little hidden features that you might have overlooked. Whether it is Android's privacy feature that lets you ...