ANKER Soundcore C40i Open-back True Wireless Bluetooth Clip-on Earbuds [Hong Kong Official Product]

• Breathable, stable non-in-ear ear-clip design for enhanced comfort
• Uses 0.5mm memory titanium wire and soft TPU material for a secure fit around the ear
• 12mm x 17mm racetrack-shaped drivers with titanium-coated diaphragms deliver clear, detailed sound
• Directional sound technology precisely delivers music into your ears while effectively reducing sound leakage
• AI algorithms and noise-cancelling microphones enable clear calls
• Supports simultaneous connection to two devices for easy switching

Breathable Comfort, Flexible Fit.

soundcore C40i (A3331)

Stay Connected to the World

The non-in-ear open-ear design, combined with air conduction technology, delivers long-lasting comfort without the pressure of in-ear headphones, allowing you to naturally hear the sounds around you.

Comfortable Non-In-Ear Ear-Clip Design

soundcore C40i features a non-in-ear design with a simple ear-clip structure. Whether you wear glasses or other accessories, it is easy and comfortable to wear, making it ideal for everyday use.

Flexible, Lightweight Design for a Secure, Comfortable Fit

The curved section uses 0.5mm memory titanium wire and TPU material for a combination of flexibility, resilience, and strength. After passing more than 10,000 bending tests, it reduces pressure on your ears while providing a durable fit for different ear shapes. The included ear grips accommodate different ear thicknesses for added stability. At just 5.8g per earbud, they reduce the burden on your ears.

Clear, Powerful Sound

12mm x 17mm racetrack-shaped drivers with titanium-coated diaphragms deliver powerful bass and clear sound. 3D surround sound is supported—activate it in the soundcore app for a more immersive listening experience.

Directional Sound Technology

soundcore C40i uses speakers angled at 20 degrees to direct sound more precisely into your ears, optimizing audio quality while reducing sound leakage.

Physical Button Controls

The physical button design makes basic controls convenient while helping prevent accidental touches.

AI-Enhanced Clear Calls

soundcore C40i uses two noise-cancelling microphones and AI algorithms to enhance call clarity.

Supports Dual-Device Connectivity

With a stable Bluetooth 5.4 connection and dual-device connectivity, you can connect to and easily switch between your computer and phone.

Extended Battery Life

A single charge provides up to 7 hours of listening time, or up to 21 hours with the charging case. With fast charging, 10 minutes in the charging case provides 2 hours of use.

soundcore App

Use the soundcore app to select different sound effects and customize control settings.

Specifications

Driver size: 12mm x 17mm; titanium coating
Charging time: 1 hour (earbuds) / 2.5 hours (earbuds + charging case)
Playtime (single charge / with charging case): Up to 7 / 21 hours (10-minute fast charge = 2 hours)
Connection: Bluetooth 5.4 (10m transmission range)
Water resistance: IPX4
Calls: 2 noise-cancelling microphones
Controls: Physical buttons
Net weight: 5.8g (single earbud) / 51.6g (with charging case)
Contents: C40i, charging case, Ear Grips (M/L), USB-C to USB-A charging cable, user manual

Note:

Battery life data was obtained through continuous music playback in soundcore's internal laboratory with the volume set to 50%. Actual usage time may vary depending on volume, audio source, environmental interference, usage conditions, and other factors.
Bending test data is based on maintaining the product's shape after 10,000 bends at 3mm.