Technology in music space is making significant strides. Sound consists of multiple frequencies and sound systems which can reproduce the entire range give you a much better experience. Subwoofer is a device which is responsible to reproduce these frequencies or what is commonly known as Bass. Bass describes tones of low frequency or range from 16-256 Hz.
The Basslet by Lofelt from Germany tries to solve that problem using a IoT device which you can wear like a watch. As you wear the device on your wrist, it creates an effect that you are standing close to subwoofer and creates a more immersive music experience.
Check them out on Kickstarter.