Sound+Sleep Special Edition

Pros

• +Adaptive algorithm adjusts volume automatically to ambient noise changes
• +64 sounds across 16 categories — most variety in the lineup
• +No manual volume adjustment needed as office conditions change
• +Richly layered sounds create more complex acoustic masking than pure white noise
• +Solid desk-presence build quality

Cons

• −Highest price in the lineup at ~$80-129
• −No battery power — plug-in only, not for travel
• −More complex than the Dohm's two-speed simplicity
• −Adaptive algorithm may not suit users who prefer consistent, predictable output