The Altec Lansing HydraTrek EverythingProof portable bluetooth speaker is packed with features that will prepare you for every adventure! Up to a 6-hour battery life, included speaker mount, carabiner clip and built-in magnet gives you the versatility to bring your tunes anywhere. The HydraTrek is designed with a rear active base radiator (ABR) to deliver exceptional base response in a compact, travel-sized speaker. Stereo pair two HydraTrek speakers together via true wireless for double the sound! The HydraTrek is the perfect, pocket-sized portable fun you look for in a waterproof bluetooth speaker!