Advent 900MHz 300' Wireless Stereo Speakers for sale in Nepean, Ontario for sale

I have s great speakers for sale. I have used them for a couple of years but recently bought a bluetooth option. They sound great and have a much greater distance than any bluetooth options out there.
From the manufacturer:
These two Advent® channel speakers come with an array of features that make them a joy to use. They operate in the 900 MHz frequency band and are switchable between 3 channels to let you use multiple devices in the same area without interference.Features:2 wireless stereo speakers with transmitter PLL (Phase-locked Loop) technology: Closed-loop circuit that locks in frequency for clear reception Signal range: 90 m (300 ft.)Can be used as rear channel speakers in 5.1 surround sound systems Integrated power, volume, tuning control, left / mono / right switch 20W total RMS power: 10 W x 2 Powered by AC adapter or 8 x C batteries (not included)Specifications:Dimensions (W x D x H):30.5 cm x 22.9 cm x 54.6 cm (12 in. x 9 in. x 21.5 in.)Weight: 4.8 kg (10.5 lb.) [Model AW874C]