IP64-certified wireless speaker: water and dust-resistant. Perfect for enjoying all of your activities and outdoor adventures with your favorite music! Your music will follow you anywhere, without missing a beat: at the skate park, at the beach, on your bike trips, while you are 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). Includes on-the-go charging gear. Speaker provides more than 14 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 microphone lets you enjoy hands-free calling. On/Off switch and 1/8" / 3.5 mm mini-jack Line input plug. Easily connect WAE Outdoor BTP04 speakers to one another, using the included USB cable. Secure tether hook, wrist-strap, snap hook. Specs: Technical specifications - RMS power: 2 x 2 W RMS - Peak power: 8 W - Frequency response: 130 Hz - 20,000 Hz - Speaker dimensions: 61 (H) / 151 (W) / 61 (D) mm - Weight: 280 g - Rechargeable 3.7 V 1200 mAh Li-ion (lithium-ion) battery - Magnetically-shielded system wont disturb your surroundings - RoHS compliant product.