B&H Photo Video offers the Harman Kardon Omni 50+ Wireless Bluetooth HD Outdoor Speaker for $289.95 with free shipping. That's the lowest price we could find by $210. Features include:
24-bit / 192 kHz HD audio streaming
dual 3.5" woofers and dual 0.7" tweeters
50Hz to 20kHz frequency response
IPX5-rated splash-proof design
up to 5-hour play time.
WiFi and Bluetooth connectivity
Some chains have retired their senior discounts. But these grocers still have deals for the silver-haired set.