NAXA Electronics NE-932 BK Neurale Wireless Headphones with Bluetooth Technology, Black Enjoy music wirelessly from smartphones, laptops, tablets, and other Bluetooth-enabled devices Built-in microphone allows you to take and make hands-free calls from a connected smartphone Convenient phone, volume, and music playback controls Rechargeable lithium battery provides up to 8 hours of music play time or 16 hours of talk time