Harman Audio offers the refurbished JBL Charge 3 Bluetooth Speaker in five colors (Black pictured) for $99.99 with free shipping. That's $19 under the best price we could find for a new one. It features up to 20 hours of playback, 6,000mAh rechargeable Li-ion battery, and waterproof casing. A 1-year Harman warranty applies. Deal ends April 16.