Specification Brand : XIADIAOPLUS BulletPoint : ?Intelligent Smart Digital Chip Dual Noise Reduction?The newly upgraded smart digital chip, this digital chip can effectively reduce noise, it sounds more natural and provides you with a wonderful experience. Great sound quality and comfortable listening. Suitable for all kinds of hearing-impaired people, the angle of the earplugs is adjustable.;?Safe and Comfortable Hearing Aid?High-quality ABS material provides a comfortable and skin-friendly touch, non-toxic and safe to the skin. Water and sweat resistant; Dome in many different sizes to fit everyone and comes with cleaning tool for longer life; Perfect for your ear canal. No radiation, harmless to human ears.;?Dynamic speaker is clearer? Higher sound resolution, stronger vocal power, better mid-high frequency performance, multi-channel wide dynamic range compression, sound dynamic gain, make the sound sound more comfortable. The operation is very simple, one key to start.;?Adaptive multi-scene use? Stronger environmental adaptability, able to deal with environmental changes freely, specially designed for the hearing-impaired, it will not feel pain when worn for a long time, light and compact, can be carried around, more convenient to carry when traveling,;?Long battery life?Built-in rechargeable battery, which can be directly powered by the provided charging box, the hearing aid can be used for 35H when fully charged, with a 400mA charging box, the whole machine can reach more than 160H, all-weather companion, full of energy;Control type: Touchpad Control; ControlType : Touchpad Control ExternallyAssignedProductIdentifier : 8012216565466 FitType : In-Ear Hazmat1 : LITHIUM ION BATTERIES PACKED WITH EQUIPMENT Hazmat10 : CN_SmallLithiumIonBatteryWithEquipment Hazmat11 : DE_SmallLithiumIonBatteryWithEquipment Hazmat12 : EG_SmallLithiumIonBatteryWithEquipment Hazmat13 : ES_SmallLithiumIonBatteryWithEquipment Hazmat14 : FR_SmallLithiumIonBatteryWithEquipment Hazmat15 : GB_SmallLithiumIonBatteryWithEquipment Hazmat16 : IN_SmallLithiumIonBatteryWithEquipment Hazmat17 : IT_SmallLithiumIonBatteryWithEquipment Hazmat18 : JP_SmallLithiumIonBatteryWithEquipment Hazmat19 : MX_SmallLithiumIonBatteryWithEquipment Hazmat2 : UN3481 Hazmat20 : NL_SmallLithiumIonBatteryWithEquipment Hazmat21 : PL_SmallLithiumIonBatteryWithEquipment Hazmat22 : SA_SmallLithiumIonBatteryWithEquipment Hazmat23 : SE_SmallLithiumIonBatteryWithEquipment Hazmat24 : SG_SmallLithiumIonBatteryWithEquipment Hazmat25 : TR_SmallLithiumIonBatteryWithEquipment Hazmat26 : US_SmallLithiumIonBatteryWithEquipment Hazmat3 : II Hazmat4 : 9 Hazmat5 : AE_SmallLithiumIonBatteryWithEquipment Hazmat6 : AU_SmallLithiumIonBatteryWithEquipment Hazmat7 : BE_SmallLithiumIonBatteryWithEquipment Hazmat8 : BR_SmallLithiumIonBatteryWithEquipment Hazmat9 : CA_SmallLithiumIonBatteryWithEquipment ItemName : Portable USB Rechargeable Ear Hearing Aids Mini Invisible Assistant Adjustable Tone Sound Amplifier For Deaf Elderly Health Care(1 Pair) (BLACK) ItemPackageDimensions_Height : 12.4968 centimeters ItemPackageDimensions_Length : 4.3942 centimeters ItemPackageDimensions_Width : 9.398 centimeters ItemTypeKeyword : hearing-amplifiers ProductDescription : Product Description Max OSPL90:120dB+3dB High frequency mean:1034 Full range sound gain:23土5 Frequency response range:300Hz-3500Hz Equivalent input noise level:35dB Total harmonic distortion:10% Body charging time:3H Charging times of the charging box:5 times Tips for buyers: Causes of howling/noise: To make a small hearing aid, the internal amplifier and microphone are placed close to each other. The sound is continuously received and expanded, so there is a certain possibility of whistling after power-on. Small hearing aids and high-power hearing aids currently on the market are difficult to avoid whistling, and only all-digital hearing aids can avoid whistling. Ways to avoid whistling/noise: 1. When the power is large (the amplified sound is large), howling is more likely to occur. Therefore, the volume gradually increases from small to large, which can effectively avoid howling. 2. When the ear canal is completely closed, there is no whistling sound. So use your hearing aids after cleaning the ear canal and test the earplugs from big to small to find the best fit. 3. After the hearing aid enters the ear canal, it is recommended to push the hearing aid with your fingers and hold it for 1-2 seconds, then release it to fully extend the earplug. Also: if you don't know how to use it or if you have a problem with your hearing aids, don't rush to leave a bad review and get in touch with us. Thank you. Package Included: 1* box 1* Charging case 1* Charging cable 2* Instrument 1* User Manual 1* Operation Manual 1* Anti-lost hand strap 2* Cleaning brushes 2* screwdriver 6* earplugs Notice: 1. If you are not using your hearing aid, put it back in the charging case. 2. Please use the original charging head and charging cable for charging. Otherwise, the product may be damaged. UnitCount : 1