Features: The product looks like a BT headset, which can protect your privacy. You no longer have to worry about discrimination. Fine quality materials, safe and non-toxic, suitable for long-term use. Mini and lightweight, ergonomic design, invisible and comfortable to wear. Intelligent noise reduction. It can greatly reduce noise and provide high and clear sound quality. Supports adjustable volume, easy to adjust the volume to meet your needs. Suitable for the elderly and people with hearing loss, perfect for helping to hear the outside sound again and regain confidence. Comes with different types of earplugs to fit different ear sizes. Comes with a charging case to charge the device anywhere and anytime. (The charging case has no built-in batteries and is powered by most USB devices.) Easy to use. Specifications: Material: Plastic Color: Skin Color Quantity: 1 Pair Max Audio Output: 115+/-3dB Audio Gain: 28dB+/-5dB Total Harmonic Wave Distortion: 3% Frequency Range: 300-3500MHz Input Noise: 32dB Voltage: DC1.5V Current: 2mA Hearing Aid (Each): Built-in 25mAh rechargeable batteries Charging Time: 6 hours Working Time: 16 hours Package Size: 170 * 90 * 50mm / 6.69 * 3.54 * 1.97in Package Weight: 210g / 7.41ounce Notes: 1. The charging case has no built-in batteries and is powered by most USB devices. 2. Due to the different monitors and lighting effects, the actual color of the product may be slightly different from the picture color, thank you for your understanding Type1-Packing List: 1 Pair * Hearing Aid 1 * Charging Case 6 * Earplugs 1 * Small Brush 1 * Charging Cable 1 * User Manual (English)