KOSS Cobalt Bluetooth Headphones

Wireless Freedom: The Koss Cobalt™

The Cobalt™ allows complete wireless freedom plus the Full Sound of Koss. Going wireless has never been so easy. The Koss Cobalt uses frequency-hopping technology for interface-free audio. Providing a 30-foot range, you can move freely while taking a call, or listening to your favorite music or movies. Just working on your PC? The Cobalt™ is also sold with a USB dongle transmitter that allows you to plug into your computer. Incorporating a Lithium Ion battery, the Cobalt gives plenty of airtime with an approximate battery life of 8 hours. Just plug the transmitter into your computer, CD, DVD, or MP3 player and slip on the Cobalt. The Cobalt can also be used with select mobile phones, utilizing its built-in microphone. It simultaneously pairs with the phone, allowing users to answer calls with the same headphones used for listening to portable music players.

The behind-the-head design of the Cobalt™ provides maximum comfort during long listening periods. Foam ear cushions allow for hear-through sound, and its dynamic element provides extended frequency response. The wider frequency response results in better overall sound performance for the Cobalt. For added convenience, push button volume controls on the ear cup allow for easy level adjustment. The Cobalt is also collapsible for protective storage and maximum portability when listening on the go. The Cobalt package includes the stereophone, audio transmitter, USB audio dongle, USB charging cable, AC charging adapter, and audio extension cable. Transmitter requires (2) "AAA" batteries that are not included