PERSONAL PILLOW SPEAKERS helps falling asleep faster, aids stress relief, relaxation, tinnitus relief & more;2 BUILT-IN DIGITAL MICRO-SPEAKERS so you can enjoy audio through dense pillows WITHOUT disturbing partner;UNIVERSAL JACK for use with any audio device with 3.5mm (1/8) headphone jack, Smartphones, clock radios, MP3 players, TVs, & more;ACOUSTIC FOAM MATERIAL ensures it remains in place under pillow for unique combination of comfort and audio quality;BACK POCKET for handy storing of Smartphone, MP3 player, or Smartphone (Player not included)