1. Listen To The World Again, Hear Purer Sounds, Wear Invisible, Long-Lasting Battery Life, High-Definition Sound Quality 2. The Chip Performance Can Quickly And Automatically Identify The Listening Environment, Focus On Speech Sounds At 360, Intelligently Reduce Environmental Noise, Eliminate Hearing Aid Howling, And Enhance The Loudness And Clarity Of Speech Sounds. 3. Adaptive Noise Reduction Chip. The Newly Upgraded Digital Noise Reduction Chip Can Eliminate Environmental Noise And Make The Sound In The Ear Clear And Translucent. 4. Listening Mode, Auxiliary Scene Selection, Adaptive Technology, Maintain Good Hearing Level No Matter How Noisy The Environment Is 5. Type-C Interface. The Traditional Micro-Usb Is Difficult For The Elderly To Use Because It Has Positive And Negative Interfaces. We Upgraded Micro-Usb To Type-C, Which Is Very Helpful For The Elderly To Charge Their Hearing Aids. Rated Voltage: 3.7V Battery Capacity: 35mAh Battery Life: More Than 12 Hours Hearing Aid Category: Wireless In-Canal Type Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Bin Color:White Colour:B:Skin color Material:ABS Package Contents: 1 Pair x Headphones 10 x Earplugs 2 x Brush 2 x Tuning Stick 1 x Charging Cable 1 x Charging Compartment 1 x English Instruction Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.