1.[17ms Ultra-Low Latency and 115dB HD Sound]Powered by 2.4G RF and Bluetooth 5.3 dual-mode, our wireless headphones achieve 17ms audio delay (3x faster than standard Bluetooth) and 115dB high-sensitivity speakers, ensuring real-time lip-sync for TV shows and crystal-clear dialogue. Perfect for seniors with mild hearing loss to catch every word without raising volume. 2.[Senior-Friendly Plug and Play - No Tech Skills Needed]Simply turn on your TV's Bluetooth function or plug the transmitter into your TV's audio out port (supports Optical/RCA/Aux/USB), click the transmitter base to switch modes and enjoy your personal time instantly. Easy-to-use connection options allow you to easily switch between scenarios and enjoy a seamless audio experience. Compatible with 99 percent of TVs, Projector, PC and more. NOTE: When using the TV's optical output, you must set the TV's audio format to PCM mode. 3.[50-Hour Marathon Battery and Charge-Anywhere Base]Enjoy 50 hours non-stop playtime (600mAh battery) and recharge fully in 2 hours. You can enjoy movie marathons at any time, letting every plot twist unfold uninterrupted without worrying about running out of battery. The transmitter base doubles as a charging dock - place headphones down after use to auto-charge, no messy cables, keep your space tidy and organized. Please fully charge the headphones before first use. 4.[100ft Wireless Freedom and Glasses-Friendly Design]2.4G RF mode for stable connectivity up to 100 feet (30 meters) through walls. Adjustable metal headband and rotating protein leather memory foam earcups seamlessly accommodate reading glasses for all-day comfort. Cook, garden, or relax anywhere without missing any great content, and enjoy high-quality audio anytime, anywhere. It's the perfect gift for elderly parents or friends with mild hearing loss.