Superior Hi-Fi soundexperience high-resolution sound with apt hi-fi technology. Excellent sound reproduction with wide Audio range producing rich bass and clear treble, challenging many much higher priced headphones on the market. Long battery life & dual modeenjoy up to an amazing 40 hours of music play time in wireless mode. Or use the included 3. 5mm cable to switch to a wired connection and use your phone Without draining any battery at all. Change from wireless headphones to wired headphones in seconds. (Kindly notice: No microphone in wired mode) Comfortable & Super lightthese over-the-ear wireless headphones come with super soft ear-pads and an easily adjustable headband providing a comfortable, customized fit. An ideal choice for long periods of music, watching TV. Multipoint and easy to use Connect to two phones simultaneously and never miss a call. Use the NFC feature for easy one tap connection. After initial pairing headphones auto-reconnect to any device, easily and instantly. Buy one for yourself and an extra set for an audio lover you know today! What you getvideo tutorials, FAQ, e-manual, accessories available from Avantree. 24-Month (with product registration). extensive support: chat, email, phone, online clinic.