Feature: 1. Clear Sound: The listening amplifier delivers clear sound quality, providing natural 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 compact, lightweight, and ergonomically designed for portability. It can be easily carried in a pocket. 4. Volume Control: Adjustable volume allows customization based on personal needs. Start with the lowest volume setting when turning on to ensure comfort. 5. High-Quality Material: Constructed from durable ABS material, it is sturdy, resistant to damage, and comfortable for extended use. Specification: Item Type: Sound Amplifier Material: ABS Battery: 1 x AA battery (not included) Product Features: Compact and portable, clear sound quality, noise reduction technology, comfortable to wear Package List: 1 x Host 1 x Earphone Wire 2 x Ear Plug 1 x Manual