Enjoy quality wireless listening with Audio-Technica's ATH-AR3BT headphones. 40mm drivers produce a superb balance of mighty bass power and delicate treble detail. With up to 30 hours battery life and cushioned comfort, you can keep tuned into your tracks for hours, and take phone calls with ease. Impressive Audio Refined and redesigned 40mm drivers in the ear-cups deliver quality audio up and down the full frequency range (5 - 35,000 Hz). From deep, driving bass to crystal-clear mids and high trebles. Read more… They also support aptX and AAC codecs for high quality wireless transmission. Wireless Listening Freedom Hook up these headphones to your smart device through Bluetooth to shed cables in an instant. Remembering up to eight compatible devices, you can pair them with your NFC-ready device by touch too. Keep Control & Take Calls Never take your device out of your pocket to change track again with the nifty ear-cup switch. With the ability to skip tracks, adjust volume or answer/reject calls at the flick of a switch, you'll enjoy a seamless listening experience. Long Battery Power Lasting for up to 30 hours off a single charge, you're assured of wireless listening all day . . . and through the night! And should the battery get low, or for a wired connection, just plug in as normal with the included cable. Listen in Comfort Foam cushioning on the adjustable ear-cups and headband ensure a comfortable listen, and fully foldable design allows for easy compact storage.