ANC/ENC – Active Noise Cancellation / Environmental Noise Cancellation.
Double Dark Noise Reduction – This likely refers to dual noise reduction for both calls and media.
Touch Control – Indicates that the earbuds support touch-sensitive controls (tap to pause, skip, etc.).
Visual Display on Case (image on box):
The charging case has a digital display.
Shows modes like:
Ambient Sound
ANC (Active Noise Cancellation)
