These are the true wireless earbuds crafted with German engineering by Sennheiser that deliver crystal-clear TV sound and speech at any volume. Sennheiser’s advanced Speech Clarity technology boosts higher frequencies, making dialog easier to discern, even if there is background noise or actors mumble. Fingertip controls on the earbuds or a free app make setup effortless and allows you to easily personalize the amount of boost. A transparent hearing setting enables you to remain aware of your surroundings as you watch. The transmitter connects wirelessly to the earbuds from up to 30' away using your TV’s audio output jack (optical or analog), making it compatible with practically any set. Also connects via Bluetooth to mobile devices for streaming music or podcasts or making hands-free calls. The earbuds charge in their own compact case, providing up to 22 hours of binge-watching pleasure; can also be charged from the transmitter, USB-C, or a Qi wireless pad (not included). A slim, lightweight design and three sizes of ear tips provide comfort for all users. Case: 3" L x 1 3/4" W x 1 1/2" D. (2 1/3 oz.)