Meritline offers this Mini Wireless Bluetooth v2.0 Class 1 USB 2.0 Adapter for $1.99. Coupon code "MLCK725HNL1" drops it to 94 cents. With free shipping, that's a slight drop from our May mention and the lowest total price we could find for a comparable adapter by $6. This features a maximum operational range of 60 feet. Coupon expires after 400 uses.

Expect this item to take two to three weeks to arrive.