Milligram have this speaker at half price. No idea about the quality but thought it might be of interest given that it sells for >$100 elsewhere. Reasonable reviews here and here. The ability to charge other devices is a nice feature.
Applying the "KICKGOALS15" code as per this post saves you an extra 15% off but this brings it below the free shipping threshold ($59). Shipping is $9.90. Best value for money would be to apply the code and buy some low value item(s) to bring the cost up to $59, thus saving about ~$5.
15% off expires at 11 am today.