POWER ACOUSTIK HP-11S Swivel Ear Pad Single-Channel IR Wireless Headphones • Single Channel Ir Wireless Headphones With Swivel Ear Pads • Adjustable Straps For Maximum Comfort • Receives Broadcasts Up To 180? From Transmitter • On/Off Switch Saves Battery Life • Auto Power Off & Mute Functions • Variable Volume Control • Alc Auto Level Control • Mp3 Player Input Via 3.5Mm Jack • 1 Set