Feature: 1. Clear Sound: The listening amplifier delivers clear sound quality, providing original audio reproduction. You can hear sounds clearly in various environments. 2. Silicone Ear Tip: The earplug is made of food-grade silicone, offering a comfortable fit, easy removal, and eco-friendly material. 3. Portable Design: The sound listening amplifier is small, lightweight, and ergonomically designed for portability. It can be easily carried in a pocket. 4. Volume Control: Adjust the volume according to your personal needs. We recommend starting at the lowest setting when turning on the device to avoid discomfort. 5. Excellent Material: Constructed from high-quality ABS material, it is durable and resistant to damage, providing long-term comfortable use. Specification: Item Type: Sound Amplifier Material: ABS Battery: 1 x AA battery (not included) Product Characteristics: Compact and portable, clear sound quality, intelligent noise reduction, comfortable to wear Package List: 1 x Host 1 x Earphone Wire 2 x Ear Plug 1 x Manual