Mobilepros1 via eBay offers two Motorola 3,000mAh Portable USB Power Pack Battery Chargers for $9.99 with free shipping. That's $5 under our March mention and the best per-unit price we've seen. (It's currently $10 under the best price we could find for two units elsewhere.) It features a USB charging port, built-in microUSB cable, and up to 1.5 times extra battery life for most phones.
GrabwirelessUSA via eBay the open-box Motorola Buds SF500 Bluetooth Stereo Headset in Black for $27.89 with free shipping. That's $2 under our mention from two weeks ago and the lowest total price we could find by $2. It features up to 10 hours of talk time and a 150-foot operating range.
Note: This item has been repackaged by the seller. A 30-day GrabwirelessUSA warranty applies.