With the Lenco HPW-400BK, you can enjoy your favorite TV shows or Netflix series without your housemates overhearing, as you can easily adjust the volume yourself. This product is also very suitable as an aid for better hearing. Simply connect the transmitter to your TV, home theater, radio, smartphone, or other audio sources via the 3.5mm audio jack. You can also connect it to all TV models via the optical digital input. These cables are included in the package. With this wireless hearing amplifier and headphones, you can easily adjust the desired volume. This way, you can listen louder without disturbing others. The HPW-400BK amplifies the sound of your TV or HiFi system and supports your hearing while enjoying your favorite shows. You can adjust the treble and bass with the push of a button, ensuring they are balanced to your liking. The HPW-400BK comes with replacement ear tips. Not using the headphones? Then charge the built-in battery by placing the headphones in the docking station, so you can use them wirelessly again later.