Great sound without the wires! Lets you hear every detail in your TV show, movie or music 2.4GHz technology provides crisp, clear wireless sound up to 150' away from the transmitter - even through walls. Goes where you do - to the kitchen for a snack or to check on the kids - so you never miss a word. Wireless desktop transmitter has USB and AUX IN connections for TV, CD/DVD player, PC/laptop or MP3 player. Features auto noise reduction and high-def audio with deep bass effect. Soft-touch padded headphones. Adjustable headband for a comfortable fit. Headset uses 2 AAA batteries (not included). Take in a late night show while your partner sleeps.