Harman Kardon Esquire Mini Speaker (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90 day manufacturer warranty Bluetooth technology lets you listen to music wherever you go, wirelessly Easily connects to any iOS device to play your favorite audio/video tracks Rechargeable lithium-ion battery lasts up to 8 hours per charge Dual microphone and built-in echo/noise cancellation technology allow for crystal-clear conference calls