Quietide Q4 State-of-the-Art Sleep Earplugs, Soundproofing, Noise Insulation Value 31 dB, Airplanes, Work, Studying, Washable, Reusable, Carrying Case Included, Japanese Instruction Manual Included (English Language Not Guaranteed), Purple
Quietide Q4 State-of-the-Art Sleep Earplugs, Soundproofing, Noise Insulation Value 31 dB, Airplanes, Work, Studying, Washable, Reusable, Carrying Case Included, Japanese Instruction Manual Included (English Language Not Guaranteed), Purple
Quietide Q4 State-of-the-Art Sleep Earplugs, Soundproofing, Noise Insulation Value 31 dB, Airplanes, Work, Studying, Washable, Reusable, Carrying Case Included, Japanese Instruction Manual Included (English Language Not Guaranteed), Purple
- Proprietary filters effectively block unwanted noise: Normal conversation is about 50 dB - 60 dB (decibel), and it is said that noise levels of less than 40 dB are desirable for sleep.Quietide earplugs are equipped with proprietary filters, allowing you to adjust the volume of ambient noise so you can create a suitable environment even for sleep.Instead of completely blocking outside noise, sound pressure is dampened by 31 dB in the entire range from high to low sound.Never miss hearing any necessary noise, alarms, or ambient abnormalities.You can rest with confidence knowing that you don't have to worry about being delayed from escaping during disasters, etc.
- Specially-Shaped Earplugs Featuring the Latest Design for Comfortable Wear: These earplugs feature an innovative ergonomic design, were developed for Japanese ear canals, and feature a special shape with radians to fit the shapes of your ear canals, and they will not fall out even while you are sleeping.Made from environmentally-friendly non-toxic liquid silicone material with excellent flexibility.They will not cause ear pain even after wearing them for a long time.Designed for Japanese people, the size of these earplugs is carefully tailored to fit the Japanese ear canal more naturally than other earplugs, resulting in less discomfort.The hollow top design provides good breathability and prevents discomfort akin to ear clogging.Feature good breathability.
- Reusable & Include A Special Case to Keep Them From Getting Lost: They can be reused cleanly even if they get dirty by washing them off with water, and they are hygienic.Feature resilience that will not decline even after extended use, and they are reusable.An aluminum case is included to keep them from getting lost.Easy to store on the go or at home, making them easy to carry around.Easy to put in and take out: Simply grip the handle on the tip of the ear plug, slowly insert it into the ear canal, and then fit it perfectly to the shape of your inner ear (as long as your ears are comfortable).Squeeze the elongated handle and remove slowly when you no longer need them.We recommend these ear plugs for those who do not like polyurethane ear plugs that swell in their ears or those who are allergic to them.
- Wide Range of Locations for Use: Feature excellent sound isolation performance (SNR31 dB) and can be used in a wide range of locations.They are very suitable for using when sleeping at home, at hotels, at campsites, or on airplanes, or when you want to concentrate while working, studying or meditating.They are also useful for wearing on trains or long-distance buses during long-distance travel.Use them when you feel uncomfortable in noisy environments, such as at live concerts, parties, clubs, sporting events, fireworks festivals, shooting, construction sites, etc.
- Set Contents: 1 pair of silicone earplugs, 1 pair of filters, 1 storage case, 1 Japanese instruction manual (English language not guaranteed).(*Filters are already attached to earplugs when shipped.) Well packaged, not only can you use them yourself, they also make great gifts with love to family and friends.-
Brand: | Quietide |
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Size: | 1ペア (x 1) |
Color: | Purple Berry |
Manufacturer: | Quietide |
Part Number: | P33BZ2F |
Material Type: | ポリウレタン, アルミニウム, シリコーン |
Isin: | I1PUFRZ8ZAJ1 |

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Fast Shipping
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- Proprietary filters effectively block unwanted noise: Normal conversation is about 50 dB - 60 dB (decibel), and it is said that noise levels of less than 40 dB are desirable for sleep.Quietide earplugs are equipped with proprietary filters, allowing you to adjust the volume of ambient noise so you can create a suitable environment even for sleep.Instead of completely blocking outside noise, sound pressure is dampened by 31 dB in the entire range from high to low sound.Never miss hearing any necessary noise, alarms, or ambient abnormalities.You can rest with confidence knowing that you don't have to worry about being delayed from escaping during disasters, etc.
- Specially-Shaped Earplugs Featuring the Latest Design for Comfortable Wear: These earplugs feature an innovative ergonomic design, were developed for Japanese ear canals, and feature a special shape with radians to fit the shapes of your ear canals, and they will not fall out even while you are sleeping.Made from environmentally-friendly non-toxic liquid silicone material with excellent flexibility.They will not cause ear pain even after wearing them for a long time.Designed for Japanese people, the size of these earplugs is carefully tailored to fit the Japanese ear canal more naturally than other earplugs, resulting in less discomfort.The hollow top design provides good breathability and prevents discomfort akin to ear clogging.Feature good breathability.
- Reusable & Include A Special Case to Keep Them From Getting Lost: They can be reused cleanly even if they get dirty by washing them off with water, and they are hygienic.Feature resilience that will not decline even after extended use, and they are reusable.An aluminum case is included to keep them from getting lost.Easy to store on the go or at home, making them easy to carry around.Easy to put in and take out: Simply grip the handle on the tip of the ear plug, slowly insert it into the ear canal, and then fit it perfectly to the shape of your inner ear (as long as your ears are comfortable).Squeeze the elongated handle and remove slowly when you no longer need them.We recommend these ear plugs for those who do not like polyurethane ear plugs that swell in their ears or those who are allergic to them.
- Wide Range of Locations for Use: Feature excellent sound isolation performance (SNR31 dB) and can be used in a wide range of locations.They are very suitable for using when sleeping at home, at hotels, at campsites, or on airplanes, or when you want to concentrate while working, studying or meditating.They are also useful for wearing on trains or long-distance buses during long-distance travel.Use them when you feel uncomfortable in noisy environments, such as at live concerts, parties, clubs, sporting events, fireworks festivals, shooting, construction sites, etc.
- Set Contents: 1 pair of silicone earplugs, 1 pair of filters, 1 storage case, 1 Japanese instruction manual (English language not guaranteed).(*Filters are already attached to earplugs when shipped.) Well packaged, not only can you use them yourself, they also make great gifts with love to family and friends.-
Processing Time
- We process and ship orders Monday through Friday, excluding holidays.
- Most orders are processed within 1–3 business days, depending on product availability.
- Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.
Shipping Coverage
We currently ship to addresses within the United States only.
Products may ship from:
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- Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).
Each product page clearly displays the “Ships From” location before checkout.
Shipping Methods & Estimated Delivery
Shipping Method | Estimated Delivery | Cost |
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Free Shipping (US) | 5–10 business days | Free, available on eligible items |
Standard Shipping (US to US by Item) | 5–10 business days | $6.50 for the first item, $2.00 each additional |
Standard Shipping (From US Warehouse by Weight) | 3–7 business days | Starts at $6.50, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb. |
Extended Delivery (Ships from Overseas Warehouse) | 10–15 business days | $14.50 for the first item, $2.00 each additional |
Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.
Free Shipping
We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout.
Carriers
We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.
Import Duties & Taxes
All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.
Tracking & Notifications
Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.
You can track your shipment anytime using the Track Your Order page on our website.
Order Changes & Cancellations
If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.
Contact: support@ibspot.com
Item Not Received
If your tracking number shows “Delivered” but you haven’t received your package:
- Check with your local USPS or UPS office.
- Confirm that the shipping address provided was correct.
- If the issue remains unresolved, contact support@ibspot.com for assistance.
Damaged or Lost Parcels
If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.
Customer Support
For any questions about shipping, tracking, or delivery, our customer support team is here to help.
Email: support@ibspot.com
We’re always happy to help.
Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.
Order Cancellation Policy
Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.
How to Request a Cancellation
You can contact us through:
- Email: support@ibspot.com
- Contact Form: Submit a request through our Contact Us page
Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.
Return Policy
We accept returns for most items within 30 days of delivery for a full refund.
To be eligible for a return:
- The item must be unused, in the same condition as received, and in its original packaging.
- A tracking number must be provided to confirm the return shipment.
Non-Returnable Items
Certain products cannot be returned, including:
- Perishable goods (for example, food, flowers, newspapers, magazines)
- Intimate or sanitary goods
- Hazardous materials or flammable liquids/gases
- Gift cards
- Downloadable software
- Some health and personal care items
Partial Refunds (If Applicable)
Partial refunds may be granted in specific situations, such as:
- Books with obvious signs of use
- Opened CDs, DVDs, software, or vinyl records
- Items not in their original condition, damaged, or missing parts not due to our error
- Items returned more than 30 days after delivery
How to Return an Item
To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.
Shipping Cost for Returns
Please contact us before returning any item.
We will provide a free return shipping label.
If a return is sent back without prior contact or without our provided label, we cannot be held responsible for return shipping costs.
For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.
Refund Processing
Once your return is received and inspected:
- In-store returns are refunded to the original form of payment or issued as a gift card.
- Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.
Please allow:
- 5–7 business days for the return to reach our Returns Center.
- An additional 3–10 business days for your bank to post the refund to your account.
Damages, Issues & Claims
Please inspect your order immediately upon receipt.
If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.
Product Claims
Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.
Exchanges
We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.
Return Address
IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States
Customer Support
Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.
Email: support@ibspot.com
Contact Form: Contact Us page
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