Goal Zero Rock Out Portable Speaker - $39.99

Ideal for the minimalist on the go, the rechargeable Rock Out Portable Speaker delivers simple plug-and-play sound from your iPod, MP3 or MP4 player. Weather-resistant, compact design for mounting on bike stems, backpacks and climbing harnesses with cinchable shock cord. Internal battery runs up to four hours on one charge and wont drain your devices power. Recharge via USB in two hours or Nomad 7 Solar Panel (not included) in one to two hours. Store MP3 player inside pocket for protection. Daisy chain Rock Outs together for bigger sound. Includes one Rock Out Portable Speaker and a USB to mini-USB cord. Includes: One Rock Out Rechargeable Speaker One USB charge cableTech Specs:Recharge TimesUSB (DC): 2 hoursNomad 7: 1-2 hoursExpect 2-4X longer charge times depending on weather conditions when charging by solar.ConfigurationWooden SpeakerFive-pin standard USB charge cableStandard 3.5mm audio outputSpeaker Dimension: 40mmPower Rating: 2 x 2Signal Processing: Double Stereo SpeakerGeneralWeight: 14.4 oz.Dimensions: 6L x 5W x 3H.Warranty: 12 monthsOperating TemperaturesOptimal Operating: 32-104FOptimal Storage: 32-86FCertificationsTested and Certified: CE and FCC Type: Accessories. - $39.99