<ul><li>Battery lasts for upto 4hours.</li><li>Supports memory SD card and FM radio</li><li>Also works without Bluetooth connection using AUX cable (not included)</li><li>High-quality:Bluetooth high-speed connected, answering incoming calls, handsfree talking, superior compatibility, high fidelity stereo surround sound</li><li>Adjustable headband:Makes it easy to take on the vacation or business trip or to store in your desk drawer for use at work</li><li>Foldable portable design:The headphones offer not only sleek style with a slim profile but also an adjustable contoured headband, it allows you to get a great position on your head</li><li>Easy to controls your headphones:Can freely control the switch of previous and next audio, pausing audio, answering calls, ending calls, refusing the incoming call, dialing the last number, volume control</li></ul>