As one of its daily deals, Groupon offers the Philips Docking Speaker for iPhone 5, model no. DS7580, for $99.99 with free shipping. That's the lowest total price we could find by $50. It features a lightning connector, up to 8-hour use per charge, compatibility with iPhone 5, seventh-generation iPod nano, and iPod touch fifth generation, 3.5mm aux port, and more. Deal ends May 12 at 1 am ET.