About the JBL WR2.4 Hear what you're missing (without everyone else hearing it) Wish you could sit back and enjoy your movies and shows late at night while actually hearing them? JBL's WR2.4 wireless headphones are an easy way to understand every word of dialogue clearly without having to wake sleeping children or spouses. Just connect the included wireless transmitter to your TV, turn on the headphones, and lose yourself in the show without any wires to worry about. Take back your TV's sound and hear the details you've been missing without disturbing the rest of the household ? or without them disturbing you. (Requires analog audio output on your TV.) Long-range listening from your TV , computer or smartphone These comfy headphones are also perfect for listening to music without being tethered to your portable music player. Just use the included cable to connect the transmitter to the headphone jack of your computer, iPod, smartphone, or other device. Even if you get up and walk away ? far away ? from your music source to get a snack, you can keep listening. The WR2.4 headphones allow long-range wireless listening ? up to 100 feet away ? that Bluetooth devices can't match. What about batteries? The WR2.4 headphones come with batteries that are both rechargeable and replaceable. Pop the rechargeable "AAA" batteries into the headphones, then place the headphones into the transmitter. Its form-fitting top cradles your headphones while charging the batteries. And when those batteries eventually start to lose some of their life, you can easily replace them as opposed to having to replace the headphones. Product highlights: wireless, around-the-ear headphones 40mm dynamic drivers includes wireless transmitter for connection to a TV, computer, smartphone or other music source transmitter recharges headphone batteries and acts as a storage cradle earcup volume and power controls reduced-sensitivity mode (-8dB) improves performance with higher-output audio sources wireless range: up to 100 feet battery life: up to 8 hours includes 2 rechargeable "AAA" batteries for headphones wireless transmission over 2.4GHz band includes RCA-to-3.5mm miniplug cable for connecting transmitter to a music player or computer includes AC power cable for transmitter frequency response: 18-20,000 Hz impedance: 32 ohms What's in the box: Wireless headphones 2 "AAA" Ni-MH rechargeable batteries (1.2V 550mAh) Transmitter/charging base AC adapter with attached 6' DC output cord (DC output: 5 volts 550 mA) 58" Audio cable (with 3.5mm mini plug on one end and stereo RCA plugs on other end) Quick-Start Guide JBL WR2.4 Headband Wireless Headphones - Black.