The Pyle Surf Sound PBTW20WT is a versatile Bluetooth wireless stereo speaker with an IPX7 waterproof and dustproof construction, making it perfect for use in wet and rugged environments. This 2-in-1 speaker doubles as a telephone handset, allowing you to enjoy hands-free calls while also streaming your favorite music. Equipped with Bluetooth V2.1, it connects wirelessly to smartphones, tablets, MP3 players, and more, providing up to 15 hours of playback. The stereo speaker produces clear sound and deep bass, and you can control the music directly with the touch button controls. Additionally, it has a 10-meter Bluetooth range and is powered by 4 Aa batteries or the included Dc 5V Usb cable.