Wireless Connectivity – The portable speaker is wireless but the base needs to be wired to the TV via the supplied cables (RCA, 3.5mm, or Optical audio cable). For HDMI Connection, you need an external HDMI converter (sold separately). Compatibility – The SEREONIC Wireless TV speaker is only compatible with PCM audio (please change your TV audio settings from Dolby to PCM). For decoding Dolby audio, an external Dolby digital converter is required (sold separately). Let Us Help – Count on SEREONIC for a full range of hearing devices for the hard of hearing and TV speakers for seniors. Your TV speakers wireless system is backed by our commitment to your satisfaction. Convenient Power – Charge your best tv speakers in about 3 hours on a USB-powered base or connect directly to a standard charger. Enjoy your Bluetooth speakers for TV up to 8 hours of continuous operation on a single charge. Portable and Powerful – Carry your wireless tv sound with you in your den, bedroom, kitchen, or outdoor. Turn your best TV speakers into outdoor TV speakers and improve your watching, listening, and talking experience. Your small TV listening device makes a big difference!. Versatile Receiver – Connect your wireless TV speakers for hard of hearing to any device with RCA, 3.5 mm (aux), or digital optical jacks. SEREONIC TV Speaker wireless base transmit custom-tuned, zero-lag RF audio from the base to the TV speakers for smart TV. Bring the Sound in Close – Hear every second of your favorite shows, films, and songs, without turning up your TV speakers. Set a wireless speakers for TV from SEREONIC next to you anywhere in your home.