Are your headphones waterproof or sweat-resistant?
Many of our headphones have IPX4–IPX7 water resistance, making them suitable for workouts and outdoor use.
Does this particular pair of headphones support connection to Apple/Android phones or computers?
These headphones use international industry-standard connection protocols, ensuring broad compatibility with Apple and Android phones and various computer devices. Basic audio functions (music playback, calls) work normally on all devices
What is the battery life of your wireless headphones?
Battery life varies by model, but most wireless earbuds provide 5–8 hours of playback, with the charging case extending total usage to 20–40 hours
What types of headphones we offer?
We offer a range of headphones including wireless earbuds, wired earphones, neckband headphones, and over-ear headphones designed for music, sport，gaming, and daily use.
Usage and Connection
How do I connect the headphones to my phone?
take out headphones.
Enable Bluetooth on your phone.
Select the headphone model name.
Complete pairing and connection.
Why can't my phone find the headphones?
Try the following:
Turn Bluetooth off and on again
Restart the headphones
Make sure the headphones are in pairing mode
Select the headphone model name
Complete pairing and connection.
Why is only one earbud working?
This may happen if the earbuds lose synchronization.
Please put the earbuds back in the charging case and take out the earbuds to re-pair and connect.
How do I reset the earbuds?
Place earbuds into the charging case
Press and hold the reset button for 10 seconds
Reconnect to your device.
Why is the Bluetooth connection unstable?
Possible reasons:
Bluetooth interference
Distance too far
Low battery.
Shipping
Do you ship internationally?
Yes. We ship to most countries worldwide.
How long does shipping take?
Estimated delivery time:
Sea freight: Approximately 30 to 60 days, depending on the country's location.
Air freight: Approximately 7 to 20 days, depending on the country's location.
How can I track my order?
After shipment, you will receive an order details sheet or a delivery note with a goods list.
How is shipping calculated?
International freight rates by sea and air are based on actual costs incurred.
Warrant
What warranty do you offer?
We offer a 12-month warranty covering manufacturing defects.
The warranty period begins from the date of purchase and requires an invoice or order number.
(Water damage and damage caused by human error
are not covered under warranty.)
How do I repair malfunctioning headphones?
First, try self-troubleshooting (see below). If that doesn't work, please contact us and return the product to the designated address.
We offer free testing, and the repair cycle is approximately 10-15 days.
Common Troubleshooting: What to do if headphones won't connect via Bluetooth?
Steps: 1. Ensure headphones are fully charged and Bluetooth is enabled. 2. Reset headphones (press
and hold the power button for 10 seconds). 3. Forget device and re-pair. 4. Update device system. If
the problem persists, check for interference in the environment.
What should I do if the headphone volume is low or distorted?
Check the volume settings and clean the headphone mesh. Try switching devices to test. If it's a software issue, reset the headphones
General Support
How do I contact customer service?
Contact me via [online chat] (weekdays 9:00-18:00), email info@backwin.com, or WhatsApp +86 18028610890.
I will reply within 24 hours of receiving your message.
Which languages does the official website support?
Chinese and English. Other languages can be translated using your browser.
How do I obtain a product parameter？
Please refer to the parameters in the corresponding product details.
What is our privacy policy?
We protect your personal information and will not share it with any third parties. Please see the
[Policy & Privacy Link].
OEM/ODM
Do you offer OEM or ODM services?
Yes. We offer comprehensive OEM and ODM services, including:
Logo design
Packaging design,
Carton design,
Product customization,
Product images,
Product videos.
What is the minimum order quantity (MOQ)?
The minimum order quantity is usually 2k, 3k for color, and the specific quantity for customization depends on the product.
Can you customize packaging and branding?
Yes. We offer packaging box design and OEM services.
How long does OEM production take?
Normal production time:
Sample: 7–10 days，
Mass production: 25–35 days
English
Chinese
