Eagles Nest Outfitters - ENO Echo Bluetooth Speaker LIGHTWEIGHT AND EASILY PACKABLE: The Echo Bluetooth portable speaker not only weighs next to nothing and fits conveniently in any pocket, purse or festival pack. OPTIMAL LISTENING EXPERIENCE: The Echo's hammock-specific design and built-in hanging hook angles the speaker for an optimized listening experience. RECHARGABLE BATTERY: The Echo includes a rechargeable battery and micro USB cable so the music won't stop after the 3 hour battery life expires. WATER RESISTANT: The Echo is rated Water Resistant (IPX4) so it is protected against splashing water from any angle. Ability to Send and Recieve Calls