Watch local channels in HD at home or anywhere with your mobile devices. Record up to two shows at a time and set series recordings with local channel DVR. *External hard drive required. Connects one HD antenna to all network connected devices via WiFi. Use the Sling app to watch your local channels on supported streaming devices. Keep in mind, This item requires a signal from your off air antenna to function. Thank you for your purchase of your AirTV 2! This is a fantastic and unique product to stream your local channels. If you need any assistance setting up your AirTV 2 please contact us directly with FREE support!. Thanks! Unique Wireless