ZVOX B4005701 SoundBase 570 Refurbished (Black) Incredible home theater sound from one slim cabinet - no external speakers or speaker wires. Wireless streaming music from you phone, tablet or computer via Bluetooth AccuVoice feature uses hearing aid technology for super-clear dialog reproduction. Built-in subwoofer for excellent bass on music and movies. Fits under your TV or on furniture below - simple one-wire hookup. One page manual!