Description: This mini sound amplifier will offer you precise sound amplification. Easy to handle, convenient for daily use and travel use. You will regain the pleasure of enjoying music, movies and TV programs with it. Come and have a try. Features: Equipped with 3 different silicone ear plugs, not easy to slip off, it will be very comfortable to wear for a long time. Reliable quality, made of user-friendly material, flexible, safe to wear without harming ear canal. Simple operation, helping you regain the pleasure of enjoying music, movies and TV programs. Adjustable volume, you can turn up the volume from low to high to meet your need. Portable storage case, waterproof and dustproof, great for daily and travel. Battery powered, convenient for you to replace the battery. Specifications: Type: Hearing Aid Model: JZ-1088H Material: Silica Gel; ABS; Metal Color: Khaki, Blue Sound Output: 110±5dB Sound Gain: ≥30dB Frequency Range: 300~4000Hz Input Noise: 40dB Battery: 1 * AG3 Button Battery Voltage: DC 1.5V Working Current: 4mA Package Size: Approx. 8.5 * 5.2 * 3.5cm / 3.35 * 2.05 * 1.38in Package Weight: Approx. 54g / 1.9oz Note: Please read the user manual carefully before use. Package List: 1 * Hearing Aid 1 * Button Battery 3 * Earplugs 1 * Storage Case 1 * User Manual (English Version)