Cafago offers this Portable LED Magnetic Levitation Bluetooth Speaker in Black or White for $92.23. Coupon code "PT1545W" cuts that to $65.99. (Amazon has a similar model for the same price.) With free shipping, that's the lowest price we could find by $10. It features a frequency response of 40Hz to 20KHz and Bluetooth range of 33 feet.

Note: This item ships from China and may take from two to five weeks to arrive.