GRACE DIGITAL AUDIO GDI-AQBLT300 Indoor/Outdoor Wireless Speakers with Transmitter (GDI-AQBLT300) GRACE DIGITAL AUDIO GDI-AQBLT300 Indoor/Outdoor Wireless Speakers with Transmitter (GDI-AQBLT300) Manufacturer: GRACE DIGITAL AUDIO, Model: GDI-AQBLT300