The EcoDuo by EcoXGear provides double the sound with the new Stereo Pairing mode that employs EcoConnect and allows two speakers to pair and provide stereo audio sound. It’s a 5-watt speaker that provides up to eight hours of playtime off a single charge. It has a hands-free speakerphone mic and will control music and the phone from the unit. It’s dustproof, waterproof, buoyant and shock resistant, for stress-free use.