eBay has the Pioneer Andrew Jones Dolby Atmos Bookshelf Speakers (Pair, SP-BS22A-LR) for $149 with free shipping. Features 4" Structured Surface Woofer with oversized magnets and vented pole pieces for improved bass response.

$149 Shop Now

eBay has the Marshall Acton Wireless Bluetooth Speaker (Black) for $130 with free shipping. List price: $300. Features 50Hz to 20kHz frequency response, bass and treble controls, Bluetooth 4.0, 3.5mm Aux Input, on/off toggle switch.

$130 Shop Now

Amazon has the Amazon Echo Voice-Controlled Bluetooth Speaker (Black or White) refurbished for $60 with free shipping. Retail price: $165. Has good Amazon Reviews.

$60 Shop Now

Amazon has the Aptoyu 20W Dual-Driver Portable Bluetooth Wireless Speaker w/ DSP for $19.99 - $9 off with coupon 4FIHGEYW = $10.99 with free shipping on $25+ or with Prime. Equipped with the advanced technology, compatible with all Bluetooth compatibility devices.

Has good Amazon Reviews.

$11 Shop Now