SIMOLIO SM-621D Wireless TV Speaker Assisted Hearing With Optical, Complete

Description

Open box and unused, the box is worn as seen in the pictures. Any questions please feel free to ask. Thanks
Manufacturer model:
SM-621D
OPTICAL/RCA/AUX AUDIO OUTPUT SUPPORTED: compatible with nearly any popular TV brand. The wireless TV speakers offer the freedom and flexibility to enjoy a good TV show, avoiding a mess of wires and a heap of connections behind the TV. Suitable for listening to regular TV shows and streaming media (Netflix, hulu, etc.) on smart TVs. If your TVs optical audio output port has been connected to a soundbar, you can have an optical splitter for installation(purchased separately).
HI-TECH WIRELESS SOUNDBAR/SPEAKERS FOR REMOTE CLEAR TV LISTENING: a perfect alternative to wireless TV headphones, freeing your ears from heavy and uncomfortable headphones. Advanced 2.4GHz FHSS tech promises to avoid interference automatically and to reproduce a private clear TV dialog directly at your side from a distance up to 100 feet away from your TV.
PERSONAL CUSTOMIZED WIRELESS TV SPEAKERS, NO MORE STRUGGLING TO HEAR THE TV: featuring voice highlighting, automatic gain control and tone adjustment, making the TV dialog easy to follow with high clarity even for the hard of hearing.The big volume knob works independent of your TV, allowing others to hear TV at a normal volume level while giving you a personal quality amplification of volume. Note: Whether connecting speakers will mute the TV depends on the design of the TV, not the speaker.
PORTABLE TV SPEAKER & POWERFUL LI-BATTERY & TWO POWER ADAPTERS: portable design allows you to move the speakers to any room, outdoors, or with you while traveling. One full charge supports 5-6 hours continuously working depending on working condition, such as volume setting. The spare AC adapter allows the speaker to be charged without having to return to the base, so TV lovers can enjoy the TV all day long.
MULTIPLE USES: including using it as a wired speaker by connecting the receiver to your phone or other multimedia device through the supplied standard 3.5mm audio cable; or connecting the included lightweight and noise isolating stethoscope headset(or any other headphones you like) to the audio out interface of the receiver to mute the wireless speakers and listen to the TV only through the headset. NOTE: under optical fiber connection, it can only work in PCM TV digital output audio format.