Koss On-Ear KPH Headphones with In-Line Volume Control, KPH7W: * Durable on-ear headphones * Over the head adjustable headband creates secure fit * Maximum portability with lightweight design without sacrificing the Sound of Koss * Deep bass production coupled with a wide frequency response * Frequency response: 80-15,000Hz * Impedance: 32 ohms * Straight, dual entry, 4" cord