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

Product ID: 620184789

Details

Brand
Soundcore
Color
Clarity Black
Ear Placement
Open Ear
Form Factor
Open Ear
Impedance
16 ohm

🎧30H battery life

💧IPX4 water-resistant

🔊12x17mm racetrack drivers

¥9183

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Stay plugged in, not zoned out — hear more, miss less with C30i.

OPEN EAR FREEDOM - Innovative open-ear design keeps you connected to your surroundings while delivering crisp, clear audio.
ALL DAY POWERHOUSE - Up to 30 hours of uninterrupted play to keep your workflow and workouts seamlessly energized.
EFFORTLESS CONTROL - Intuitive touch controls let you manage calls, music, and volume without missing a beat or breaking your flow.
SECURE CLIP ON FIT - Firm-shell construction with attachable ear grips ensures a stable, no-slip experience—even during intense movement.
SWEAT SPLASH READY - IPX4 water resistance means these earbuds stay strong through rain, sweat, and every hustle.

The Anker Soundcore C30i open-ear earbuds combine a lightweight, clip-on design with 30 hours of battery life and IPX4 water resistance. Featuring large 12x17mm racetrack drivers and titanium-coated diaphragms, they deliver clear, immersive sound while keeping your ears free to stay aware of your environment. With attachable ear grips and a firm-shell frame, these earbuds offer a secure fit perfect for professional multitasking, workouts, and daily commutes.

Specifications

ASIN	B0CTJR2C5X
Additional Features	Lightweight, Microphone Included, Universal Phone Control, Volume Control, Water Resistant
Age Range Description	All
Antenna Location	Music
Audio Driver Type	Dynamic Driver
Battery Average Life	30 hours
Best Sellers Rank	#2,541 in Electronics ( See Top 100 in Electronics ) #53 in Open-Ear Headphones
Bluetooth Version	5
Brand Name	Soundcore
Built-In Media	2 Sizes of Ear Grips (M/L), Cable, Charging Case, soundcore C30i
Cable Features	Without Cable
Color	Clarity Black
Compatible Devices	Cellphones, Desktops, Laptops, Tablets
Connectivity Technology	Wireless
Control Method	Touch
Control Type	Volume Control
Controller Type	Touch
Customer Reviews	3.9 3.9 out of 5 stars (3,950)
Earpiece Shape	Oval
Enclosure Material	Plastic
External Testing Certification	/
Frequency Range	2402-2480 MHZ
Headphone Folding Features	Open Ear
Headphone Jack	No Jack
Headphones Ear Placement	Open Ear
Impedance	16 ohm
Item Weight	1.76 ounces
Manufacturer	Anker
Model Name	C30i
Model Number	A3330
Noise Control	None
Number of Items	1
Number of Power Levels	1
Series Number	33
Specific Uses For Product	Business, Entertainment, Fitness, Gaming, Professional, School, Sleeping, Travel
UPC	194644197100 194644043353
Warranty Description	18
Water Resistance Level	Water Resistant
Wireless Technology	Bluetooth

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¥9183

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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