JBL has the JBL GO Portable Mini Bluetooth Speaker on sale for $ 19.95 with Free Shipping.

• Choose from black, blue, grey, orange, pink, red, teal or yellow
• Limited to 2 per order
• Includes charging cable
• Built-in Speakerphone w/ noise & echo cancellation
• 5 hr playtime
  

This wireless speaker has been rated 4.6/5 stars based on 334 customer reviews. You can also find it at Harman for $ 19.95 with Free Shipping.