This hearing-aid is safe to use, convenient and practical. It can help user hear the outside sound again, regaining confidence. Mini and lightweight, ergonomic design, invisible and comfortable to wear. Suitable for elderly and those people with hearing loss. Features: Fine quality material, safe and non-toxic. Mini and lightweight, ergonomic design, invisible and comfortable to wear. Intelligent noise reduction and volume adjustable. Ear canal simulation design, suitable for long time wearing without pain. Comes with different types of earplugs to fit different ear sizes. Suitable for elderly and those people with hearing loss. Perfect to help hearing the outside sound again, regaining confidence. Easy to operate and use. Specifications: Material: Plastic Color: Beige Type: For Left Ear, For Right Ear (Optional) Input Noise: 26dB Frequency Response: 200Hz-7645Hz Working Current: 1.36mA Powered By: 1 * A10 Button Cell Item Size: 18 * 15mm / 0.71 * 0.59in Package Size: 100 * 100 * 55mm / 3.94 * 3.94 * 2.17in Package Weight: 60g / 2.12ounce Packing List: 1 * Hearing-Aid 6 * Earplugs 1 * Small Brush 1 * Small Screwdriver 1 * User Manual(English)