How can I fix unclear voice or poor call quality on my C30i?

First,check that the microphone openings on the earbuds are clean and unobstructed.Ensure you are wearing them correctly for optimal microphone performance.If issues continue,try using both earbuds together for better voice pickup and noise reduction

Can I use only one earbud for calls?

Yes, but for the best call clarity, place the unused earbud fully into the charging case and close the lid. This ensures the microphone and connection focus on the earbud you are using, improving voice transmission.

What should I do if my C30i won’t turn on or charge?

Clean the earbud and case charging contacts gently with a dry cloth or alcohol swab. Try a different cable and power adapter. If the pins in the case are recessed, carefully lift them with a non-metallic tool to restore contact.

How do I reset my C30i earbuds?

Place both earbuds in the case, leave the lid open, press and hold the case button for 5 seconds until the red light flashes three times. This resets the earbuds. Ensure they are seated properly in the case during the reset.

How can I reconnect my C30i to a device?

Forget the earbuds from your device’s Bluetooth settings, turn Bluetooth off and on, then pair again. If problems persist, test the earbuds with another device to determine if the issue is with the earbuds or the original device.

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C30i by Anker, Open-Ear Earbuds, Clip-On Earphones, Lightweight Comfort, Stable Fit, Firm-Shell Design, Attachable Ear Grips, Big Drivers for Clear Audio, 30H Play, IPX4 Water-Resistant

Product ID: 647754800

Details

Brand
soundcore
Colour
Black
Connectivity technology
Wireless
Ear placement
Open Ear
Form factor
Open Ear
Headphone jack
No Jack

🎧12mm×17mm racetrack drivers

💧IPX4 water-resistant

🔋30 hours battery life

¥16023

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Stay ahead of the pack with soundcore C30i — where comfort meets unstoppable sound.

ALL DAY POWER - Enjoy uninterrupted music with an impressive 30-hour battery life that keeps pace with your busiest days.
SECURE CLIP ON FIT - Innovative firm-shell design combined with attachable ear grips ensures your earbuds stay put, no matter the intensity of your workout.
CRYSTAL CLEAR SOUND - Experience rich, detailed audio through large 12mm×17mm racetrack drivers with titanium-coated diaphragms for open-ear clarity.
READY FOR ANY WEATHER - IPX4 water resistance means sweat or rain won’t stop your flow—ideal for outdoor adventures and active lifestyles.
LIGHTWEIGHT BREATHABILITY - Engineered for breathable comfort and a featherlight feel, perfect for long hours of wear without fatigue.

The soundcore C30i by Anker are open-ear, clip-on wireless earbuds featuring large 12mm×17mm racetrack drivers with titanium-coated diaphragms for clear audio. They offer a secure, stable fit with a firm-shell design and attachable ear grips, ensuring comfort and stability during active use. With up to 30 hours of battery life and IPX4 water resistance, these lightweight earbuds are built for all-day wear and outdoor activities.

Specifications

ASIN	B0CTJR2C5X
Age Range Description	All
Antenna Location	Music
Audio Driver Size	12 Millimetres
Audio Driver Type	Dynamic Driver
Battery Average Life	30 Hours
Best Sellers Rank	93 in Open-Ear Headphones
Bluetooth Version	5.3
Box Contents	USB-C Cable (11.81 in/300 mm), Wireless Charging Case, soundcore C30i
Brand Name	soundcore
Cable Features	Without Cable
Carrying Case Color	black
Carrying Case Material	Plastic
Colour	Black
Compatible Devices	Smartphones, Tablets, Laptops
Control Method	Touch
Control Type	Volume Control
Controller Type	volume control
Country of Origin	China
Customer Package Type	[Inferred: Suitable for Safe Delivery]
Customer Reviews	4.0 4.0 out of 5 stars (3,848)
Earpiece Shape	Rounded, over-ear
Enclosure Material	Plastic
External Testing Certification	/
Frequency Range	20 Hz - 20,000 Hz
Headphone Form Factor	Open Ear
Headphone Jack	No Jack
Headphones Ear Placement	Open Ear
Impedance	16 Ohms
Is Autographed	No
Is Electric	No
Item Weight	50 g
Manufacturer	Anker
Model Name	C30i
Model Number	A3330
Network Connectivity Technology	Wireless
Noise Control	None
Number of Items	1
Number of Power Levels	1
Product Features	Lightweight, Microphone Included, Universal Phone Control, Water Resistant
Product Warranty	2 Years
Series Number	33
Specific Uses For Product	Outdoor Activities
Style Name	Sporty
Theme	Fitness
UPC	194644197100 194644043353
Unit Count	1.0 count
Water Resistance Level	Water Resistant
Wireless Technology Type	Bluetooth

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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