1、Comfortable For All: Each ear can vary greatly in size and shape, made of super soft material and designed to fit all ear types without causing the discomfort of feeling too tight or painful. 2、Clear Sound: This hearing sound amplifier provides high definition stereo sound, enabling the user to hear the beauty of the world around them more vividly. 3、Double Noise Reduction: Utilizes double noise reduction technology that further clarifies the sound, improving the user's listening experience. 4、Durable and Water Resistant: Features a coating shell that is resilient and sweat and rain proof, effectively prevents the internal chip from being corroded, hence prolonging the lifespan of the device. 5、Great Gift Choice: Perfect gift for seniors, enabling them to hear the world's sound again, curbing feelings of silence and loneliness in their lives. Item Type: Hear Sound Amplifier Material: Plastic Battery: A10 button battery (not included) Features: Each ear size, shape is not the same, do not choose the right wearing process is easy to fall off, feel pain, this product is not limited to ear type, soft material will not produce pain, wear more comfortable 1 x Invisible Sound Amplifier 3 x Earplug 1 x Cleaning Brush 1 x Storage Box