• The ZF-M607 is suitable only for users with mild to moderate hearing loss, helping them hear sounds ranging from 20 to 70 decibels.
• For first-time hearing aid users, it is recommended to first undergo a hearing test to determine whether a hearing aid is necessary to address their hearing loss.
• Please pay attention to the earplugs' tip sizing. We provide three sizes of earplugs; if they do not fit your ear canal perfectly, whistling or beeping may occur. Should this happen, please remove the device and turn it off immediately. Resume normal use only after ensuring a proper, secure fit. Under normal circumstances, the earplugs we provide are sufficient for everyone, though exceptions may still occur.
• Please note that the ZF-M607 is merely an alternative solution for hearing loss; it cannot fully restore or resolve hearing loss.
• Please think rationally and avoid making impulsive purchases. While we certainly hope to achieve strong sales, KFCOPTEE’s ultimate goal is to ensure that every single product effectively resolves our users' issues. Should you encounter any issues with your product, please contact us immediately; we will do our utmost to resolve the matter.

• Ready to wear straight out of the box
• 100-hour battery life for worry-free use
• The smart charging case battery status—at a glance.
• Small, discreet design that feels comfortable all day
• Crystal-balanced sound for everyday conversations

• One pair of ZF M607 hearing aids
• Three sizes of earplugs for a perfect fit
• One detailed instruction manual
• One smart charging case with digital display
• One cleaning brush to maintain your devices
• One charging cable for easy recharging

• Shipping: Orders typically ship within 1-2 business days. Standard shipping times vary based on location.
• Returns: We offer a 30-day free return policy. When returning an item, please provide a detailed explanation for the return. If the product arrived damaged or has quality issues, please provide supporting photos and videos. Provided your return request is deemed valid, we will process it promptly and issue you a return shipping label. We do not accept returns for items damaged due to personal misuse, nor do we accommodate malicious refund requests. We have designated UPS as our preferred return carrier. Once we receive and inspect your returned item, we will issue a refund to your original payment method; this process typically takes approximately 5 business days. If you have any further questions or inquiries, please feel free to contact us at any time at info@kfcoptee.com.

For first-time hearing aid users, a hearing test is strongly recommended to determine whether they need hearing aids and what stage of hearing loss they have. Over-the-counter hearing aids are not custom-made and cannot address the subtle differences in hearing loss experienced by everyone; they can only address a certain range of hearing loss. For example, the ZF-607 is perfectly suitable for mild to moderate hearing loss.

We save you the cost of expensive doctor consultations, operational overheads, and prescription drug markups. Most importantly, KFCOPTEE operates on a direct-to-consumer model—selling directly from the factory to you, with no middlemen involved.

We employ an ergonomic design to ensure that all our devices are both comfortable and discreet. With three different sizes available, there is sure to be a size that fits you perfectly.

No, but we do accept FSA and HSA cards for payment at checkout!

Charging time is approximately 4 - 6 hours.

NO. These are true FDA registered over the counter hearing aids, not to be confused with cheap amplifier alternatives.