Get six free months of Amazon Music Unlimited when you purchase select Amazon Echo devices at Amazon. All of the qualifying devices are currently marked down, like the pictured Amazon Echo (4th Gen). It drops from $147.93 to $59.99, which matches the discount we found at other stores, but the added Amazon Music subscription makes this the best deal for one. After six months, the Amazon Music Unlimited subscription will auto-renew at $7.99 per month, but you can cancel at any time. Shipping is free. Sales tax is charged in most states.