Vinus Wireless Bluetooth Headsets Sports Stereo SweatProof Headphone Earphone 4.0 Ear Headphones With NFC&Dual Microphone-Handsfree And Answer Calls (Red) Up to 6 hours talk time ;Up to 6 hours music playback time;Up to 150 hours standby time AptX Technology: Delivers CD-quality wireless over Bluetooth. Audio Line-in: Stream music by audio line-in cable even if it is out of power. Quickly and easily pairing and connection through the in-built NFC,it can connected when you turn it on.Not easy to lose connection Handsfree,Good for driving or sporting:Dual,high-performance mics deliver superb noise cancellation,so calls come in crystal clear