Home Slickdeals COWIN E7 Active Noise Cancelling Bluetooth Headphones with Microphone $39.99 Slickdeals COWIN E7 Active Noise Cancelling Bluetooth Headphones with Microphone $39.99 By ARCOM - 31 October 2017 248 0 SHARE Facebook Twitter Go to the deal page: COWIN E7 Active Noise Cancelling Bluetooth Headphones with Microphone $39.99