• XBS port increases bass response
• Comfortable open-air design with wide headband
• Frequency response 16Hz-22kHz
• Neodymium rare-earth magnet for rich and powerful sound
• Large-diameter driver units 30mm (1-3/16″)

Product Description
Panasonic RP-HT21 Lightweight Headphones with XBS Extra Bass SystemAmazon.com Product Description
Take your music on the run with Panasonic’s lightweight, low-cost RP-HT21 over-ear headphones. Their large, 30 mm diaphragms offer full-bodied sound free of the harshness and discomfort that usually accompany earbud-style earphones. The headphones’ open-air design minimizes adverse resonances, and Panasonic’s XBS acoustic ports naturally emphasize bass freque… More >>

Panasonic RP-HT21 Lightweight Headphones with XBS port for increased bass response