The iSound Fire Glow rechargeable portable speaker packs crystal clear sound and surprisingly powerful bass into a portable, compact and very attractive aluminum casing design. Simply plug your iPod, iPhone, iPad, smartphone, laptop, MP3 player or other audio device into the 3.5mm audio cable to bring your tunes anywhere. The iSound Fire Glow speaker comes with an expandable design for improved sound quality. The speaker features a Li-ion Polymer Battery which allows 5 hours of playtime at 70% volume and 40 hours of standby time. Included with the speaker is a 3.5mm audio cable as well as a USB cable for quickly recharging the built-in rechargeable battery, a full charge taking less than 3 hours. Impress yourself and others with the crystal clear sound and colorful light effects of iSound"s Fire Glow.