RELAXOUND SATELLITE BOX SONG THRUSH Nature Sound Therapy Box Motion SONG SENSOR sealed recharageble approx 3" Enjoy pure or combine: The Satelliteboxes Relaxound Satelliteboxes offer individual sounds, allowing you to create your own acoustic environment. Their sound is captivating on its own and can be flexibly combined with other Relaxound boxes, letting you enjoy your favorite sounds in their purest form. 60-120 SECONDS OF YOUR FAVORITE SOUND Alone or as an addition to other sound boxes PRACTICAL SENSOR The natural sounds are activated in passing OPTIMAL VOLUME Simple adjustment to the room size EASY TO SET UP Can be placed anywhere thanks to battery power