The RP-HG50 also features the RP-HG30’s water resistance and travel-fold design. The RP-HG50, however, is the only headphone in the Neck Band HG series to offer an in-cord volume control, and is in fact the most popular headphone in the series, save for its competitor, the revolutionary two-way Panasonic RP-HG20. The Panasonic RP-HG50 is priced at $19.95, a $5 increase in price from its weaker predecessor, the RP-HG30.