ISE 2014: Polk Audio Introduces Hertitage Series Wireless Airplay Bluetooth Loudspeaker February 4, 2014 | Home / February 4, 2014 rave-video / ISE 2014: Polk Audio Introduces Hertitage Series Wireless Airplay Bluetooth Loudspeaker ISE 2014: Polk Audio Introduces Hertitage Series Wireless Airplay Bluetooth Loudspeaker