Panasonic On-Ear Headphones RP-HT21 (Black & Silver)

Lightweight, open-air design headphones weigh just 1.2 oz. without cable, Cable Length: 4.50 ft
XBS port for increased bass response and neodymium magnets for full-range sound
Wide headband and foam-cushioned earphones for added listening comfort
Large-diameter driver units 30mm (1-3/16"), 3.5 mm connector
Frequency response: 16 Hz - 22 kHz,Impedance: 16 Ohm

Panasonic RP-HT21 Lightweight Headphones with XBS
Bang-for-your-buck sound you just have to hear to believe. The Panasonic RP-HT21 headphones combine a high-quality listening experience with portability and lightweight comfort—and at a price that’s easy on your budget. An XBS port pumps up the bass while a wide headband and foam-cushioned earpads keep you comfy. Perfect for grab-and-go listening, the RP-HT21 headphones are ideal to keep next to your computer, in your laptop case or in a backpack along with your portable music device.