The QBR Quantum Ball is a small silicone ball with rare-earth lanthanides and magnetic powder mixed right through it. Thread your cable through its holes and it tunes the signal right where it sits. Three seconds, no tools, nothing to plug in.
 
Instant improvement 
- blacker background
- A cleaner and faster transient of notes 
- More clarity.
 
Application : 
- Speaker Cables 
- Interconnects 
- Power Cable 
- USB Cables 
- Ethernet Cables 
- Headphones/ Earphones cables