Hercules WAE Outdoor BTP04 IP64-Certified Bluetooth Speaker (Black) Single unit Bluetooth 2.1 + EDR (A2DP) Built-in microphone for hands-free calling Easily connects to other wae outdoor Btp04 speakers using included USB cable Dust- & water-resistant (IP64) IP64-certified wireless speaker: water & dust-resistant. Perfect for enjoying all your activities and outdoor adventures with your favorite music! Your music will follow you anywhere: at the skate park, beach, on your bike trips, while youre skiing! Single-unit Bluetooth 2.1 + EDR (A2DP) stereo speaker. Compatible with Bluetooth devices: mobile phones and smartphones, tablets, computers (Windows Vista/7/8, Mac OS X). Speaker provides more than 10 hours of battery life. Enjoy audio clarity: two active wideband drivers, plus one passive bass-amplifying driver. Rubber end-pieces for enhanced shock resistance, and double protective grille for drivers. Built-in mic lets you enjoy Hands-Free calling. Easily connect WAE Outdoor BTP04 speakers to one another, using the included USB cable. Secure tether hook, wrist-strap, snap hook. Standard-size screw thread for easy mounting (examples: optional tripod, optional suction cup mount, optional bike mount, etc.). Specifications: 2 x 2W RMS; Peak Power: 8 W; Frequency Response: 130Hz 20kHz; Speaker Dimensions: 2.4" high x 5.95" wide x 2.4" deep; Weight: 9.9 oz.; Rechargeable 3.7 V 1200 mAh Li-ion (lithium-ion) Battery; Magnetically-shielded Box contents: Single-unit IP64 Bluetooth speaker; USB charging cable and 1/8"/3.5 mm male mini-jack line output connector cable; 110/220 V power plug with USB port: Wrist-strap; Snap hook; Warranty Certificate and User Manual