UPC：701142103818 1. Active Noise Cancelling Function: enjoy a quiet world. ANC technology cancels outer noise, allowing you to enjoy your audio on the subway, bus, plane,and other noisy situations. 2. Comfortable Wearing: covers protein pads and have a nice soft padding both on the sides and on the top Much more comfortable than the little ear buds and even with glasses, it's comfortable to wear. 3. Long Playtime: Powerful rechargeable 1050mAh lithium polymer battery with large capacity ensures up to 70 hours music playing, 80 hours phone call, 240 days standby time, double click. paly/pause button of the bluetooth headphone to active Siri make your life more easier 4. HiFi Stereo: 40mm big speaker drivers for deep, powerful sound for the music you love, No matter how noisy the world is, Its just you and your music. 5.Wired & Wireless Connection: two mode ensure the availability whenever you want your music world plain 3.5mm stereo cable is included. Connect it with your PC, tablet, cell phones, etc, built-in Microphone，Answer/hang up calls, enjoy music, volume control, The last dialed number redial.