Delivers high quality sound from two powerful side firing 7 watt speakers</br>Convenient Bluetooth wireless technology means music can be played from a phone while the phone is with the user</br>Rated IPX4 water resistant for durability during light drizzle</br>USB output socket charges small electronic devices like a phone and stores and protect the device as well</br>When powered by a 3.0Ah battery?? the radio delivers approximately 11 hours of listening time off a charge</br></br>Product Description</br></br>This convenient and robust radio runs off any 14.4V -18V Hitachi Lithium Ion slide-type battery (sold s