The DJ44S700 adapter features the following:
- All-in-one design with exclusivity
- Why is Sony's 4.4 mm jack not connected to the ground?
- Why does the sound quality improve after being grounded?
- Specially designed ground pin
Check more after the link: >> ddHiFi Website
ddHiFi DJ44S700 4.4mm Ground Pin Adapter Exclusively for SONY NW-ZX706 and NW-ZX707