Product Description Fine Sound Quality and Comfortable Listening Intelligent Noise Reduction: Features low-frequency noise reduction and clear sound, with intelligent processing of environmental sounds to minimize distortion and background noise. Volume Adjustment: Allows you to adjust the volume according to your needs, suitable for different hearing ranges. Long Battery Life: Can be used continuously for a week with 3 hours of daily use. User-Friendly Controls: One-button switch and volume adjustment, making it easy for the elderly to use.Comfortable to Wear Ergonomic Design: Designed to fit securely and comfortably, reducing the risk of falling out. Silicone Sound Tube: Durable and comfortable, adjustable to fit your ear. The sound tube can be rotated 180 degrees from left to right, allowing you to wear it in either ear without affecting the fit, even if you wear glasses.Lightweight and Easy to Carry Compact Size: Adult hearing aids are small and lightweight, weighing only about 7g. Wireless Ear Hook: Compact body design makes it easy to carry and ensures smoother communication. Maintenance Tips: We recommend cleaning the earplugs or earmolds regularly to ensure optimal performance.Usage Tips Avoiding Howling: Howling is more likely to occur when the ear canal is not completely sealed. Gradually increasing the volume from the lowest setting can effectively avoid howling. Proper Fit: Ensure the ear canal is clean before using the hearing aids. Test different sizes of earplugs to find the most suitable fit. Insertion Technique: After inserting the hearing aid into the ear canal, gently push the hearing aid with your fingers and hold it for 1-2 seconds before releasing it to fully extend the earplug.