Sentry 784CD Headphones with Splitter Plug, Pack of 3 Styles Pack of three different digital stereo sound headphones.Connectivity Technology: Wired Includes a lightweight headphone, clip-on headphone and an ear-wrap headphone Frequency range: 20Hz-20kHz; Impedance: 32 Ohms 4 foot cord length with 3.5mm plug Dual splitter plug