Pyle PWPBTA70WT Sound Box Splash Rugged and Splash-Proof Bluetooth Marine Grade Portable Wireless Speaker with AUX Input (White) Built-in Bluetooth Technology - Stream Music Wirelessly - Works with Virtually Any Bluetooth-Enabled Device (Smartphone, Tablet, PC, MP3 Player, etc.) Marine-Grade IPX4 Splash-Proof & Shock-Resistant Design - Built-in Rechargeable Battery - Easy-Push Button Controls - Impressive Bass Output Battery Life: 6 Hours - Battery: Lithium 1400mAh - Charges via USB cable (Included) - Dedicated Full-Range Stereo Speakers Metal Hook Loop for Easy Attachment to Chain, Wire, Karabiner, Clip, etc. Effectively Recreates Lows, Mids and Highs 3.5mm AUX Input to connect external devices (iPod, iPhone, MP3 Players, Smartphones, etc.) - Dimensions (W x L x H): 2.5"" x 8.3"" x 2.7""