Shoptronics via Amazon offers Amazon Prime members the Electrohome Alarm Clock with Battery Backup, model no. EAAC475, for $27.96 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.87.) That's the lowest total price we could find by $17. It features an LED display, 180° swivel time projection, digital AM/FM radio, and USB charging compatibility with all smartphones, tablets, mobile phones, and MP3 players.