Woot! has the Vipex 10W Bluetooth Mini Sound Bar for $30 with free shipping w/ Prime. Features Bluetooth 5.0, 3.5mm aux port, measures 16.2" x 2.25" x 3". Provides you a more enjoyable sound experience with its dual powerful 5W superior sound drivers.

Has excellent Amazon Reviews.

$30 Shop Now

Amazon has the Sonos Move Battery-Powered Smart Speaker w/ Alexa (White) for $299 with free shipping. List price: $399. Features IP56 rating, up to 11 hours of continuous play time, and be controlled using Sonos app, Bluetooth, AirPlay 2, and your voice.

Has excellent Amazon Reviews.

$299 Shop Now

Amazon has the Sonos Move Battery-Powered Smart Speaker (Black or White) for $299 with free shipping. Features: IP56 rated, Two Class-D digital amplifiers, Capacitive touch controls, Wi-Fi + Bluetooth support, compatible with AirPlay 2 on Apple devices iOS 11.4 and higher.

Has excellent Amazon Reviews.

$299 Shop Now

Amazon has the Urbanears Ralis Portable Bluetooth Speaker (4 color options) for $100 with free shipping. Features 50Hz - 20kHz frequency range, 20-hour playback time and Aux audio input.

Has excellent Amazon Reviews.

$100 Shop Now

eBay has the Samsung 2-Channel Wireless Rear Speakers (Open Box) for $55 with free shipping. List price: $130. Features surround sound, wall-mountable design, and compatible with Samsung Sound+ soundbar models: HW-M360, HW-M450, HW-M4500, HW-M550.

$55 Shop Now

Amazon has the Amazon Echo Link for $140 with free shipping. Features compatible Echo device or the Alexa app, voice control, multiple digital and analog inputs and outputs.

Has good Amazon Reviews.

$140 Shop Now