One of the best pillow speakers, it amplifies audio from devices where the volume is normally too low with improved voice clarity to enjoy audio books, podcasts, movies, radio shows, music or white noise at the volume you prefer without disturbing others without the tangle of earbuds or headphones. | It may compensate for normal hearing loss and can help with insomnia and in some cases tinnitus by adding background noise, but it is best to see a professional audiologist for a hearing test and recommendations. | With the In-line volume control and amplifier, the SoftSpeaker-3 works with any device with a 3.5 mm (1/8”) stereo headphone jack or line out, so you can adjust the volume that is best for you, and tone control adjustment for voice clarity or music. It delivers high quality audio up to three times louder than a non-amplified pillow speaker. | It is large and soft to lay on your ear or under your pillow for late night movies and the stereo signal is fully combined so there is no drop-out loss from the right or left channel. A neodymium magnet speaker provides superior clear audio. | Works with any smartphone or tablet that has a headphone jack, such as iPads, Kindles, iPhones, Samsung, Chromebooks, smart speakers, etc.. (2) optional AAA batteries last up to 80 hours, battery level indicator, adjustable sleep timer, and a one-year warranty.