eBestShop4U via eBay offers the Kocaso 3-in-1 Power Bank / Bluetooth Speaker / Flashlight, model no. PDS-100, for $16.14 with free shipping. That's $3 off list and the lowest total price we could find. It features a 2,600mAh battery that can be used to charge devices, 1-watt speaker with 100Hz to 20KHz frequency response, hands-free calling, and emergency flashlight. Deal ends April 17 at 10 pm ET.