JAM Doubledown Wireless Portable Bluetooth Speaker, Splash Proof, Ultra Portable, Pair 2 for Stereo Sound, Answer Calls, Speakerphone, Rubberized Body, Durable, 30ft Range, HX-P370BK Black Pair for Stereo: Combine two JAM Doubledown speakers for rich stereo sound Splash Proof: Rock out by the pool! A little water won't hurt this tough speaker. Rugged Construction: Features a rubberized body for maximum durability Bluetooth: Connect wirelessly with any device in a 30 foot range. Aux-In Port: Cord it up and listen on any device - Bluetooth or not Rechargeable: Provides up to 6 hours of play time on a single charge Speakerphone: Answer calls directly from your JAM Doubledown speaker