The Wowee is a highly portable speaker that provides a full range frequency response. It is suitable for all iPod,MP3,MP4, mobile phone and computer applications by using standard 3.5 mm audio jack, unlike other products specific speakers. Wowee uses a hybrid technology of standard speaker, delivering the mid to high frequencies, and a SFX Gel Audio driver delivering low end Bass frequencies. The extended low frequency response of the Gel Audio outperforms any similar size device by producing bass frequencies around 3 octaves below the low end cut-off of a traditional unit. The unit is powered by an internal rechargeable battery and deliver up to 20 hours of playtime per charge. Ease of use, no switches or replacing batteries, plug and play technology.