A:Answer Hi Hisense Customer, Thank you for your interest in the Hisense 40A4NF. This unit supports bluetooth, optical, HDMI ARC, and 3.5 mm aux. If you have any further questions or concerns, please give us a call at 1-888-935-8880 or email us at Service@Hisense-usa.com. Thanks again, Harley with the Hisense Support Team.