TDK A12 TREK Micro NFC Bluetooth Portable Mini Wireless Outdoor Speaker - Black High quality, Bluetooth wireless audio streaming Weatherized design protects against the elements Built-in NFC technology allows for quick wireless pairing Requires NFC enabled device Enjoy stereo sound by pairing two TREK Micro Speakers via True Wireless Stereo (TWS) Auxiliary output lets you turn your old sound system into a wireless Bluetooth receiver