Description
Anker Soundcore C40i Open-Ear Clip-On Earbuds
The Anker Soundcore C40i is made for listeners who want open-ear comfort, a secure clip-on fit, and audio without placing earbuds inside the ear canal. Its breathable design, flexible materials, and lightweight 5.8g construction make it suitable for commuting, workouts, office use, travel, and listening. The open-ear format also lets you stay aware of nearby sounds while enjoying music, podcasts, videos, and calls.
Breathable Open-Ear Design for Everyday Comfort
The Anker Soundcore C40i uses a non-intrusive clip-on structure that rests around the ear instead of creating a sealed in-ear fit. This design provides a breathable experience while helping users remain aware of their surroundings.
At approximately 5.8g per earbud, the C40i is lightweight enough for extended wear. The open-ear construction is a practical alternative to conventional silicone ear tips. Whether walking, working, commuting, or exercising, the clip-on format provides personal audio while keeping the ears open.
Flexible Memory Titanium Wire and Secure Fit
The Anker Soundcore C40i combines 0.5mm memory titanium wires with soft TPU joints to create a flexible, adaptable fit. The memory titanium wire can conform to the shape of the ear, while the flexible joints support comfortable positioning during movement.
The structure is designed for 1,000-bend durability, while attachable ear grips can provide additional stability. This makes the earbuds suitable for active routines where a secure fit is important.
12mm × 17mm Titanium-Coated Drivers
For audio performance, the Anker Soundcore C40i features 12mm × 17mm racetrack-style titanium-coated drivers. These drivers are designed to provide clear, engaging audio while maintaining the compact open-ear design.
The C40i supports Vibrant Audio and 3D Sound for music, podcasts, videos, and everyday entertainment. Its open-ear design is intended for listeners who want personal audio while remaining aware of their surroundings.
If you are looking for more wireless audio products, explore the Anker Earbuds collection available at WearTeck.
Bluetooth 5.4 and Multipoint Connectivity
The Anker Soundcore C40i supports Bluetooth 5.4 and multipoint connectivity, allowing the earbuds to maintain connections with two compatible devices. This is useful when switching between a smartphone and laptop during work or everyday activities.
Physical button controls provide straightforward operation and can help reduce accidental commands during movement. The buttons are practical while walking, exercising, or commuting.
For complete product information and official support, visit the official Soundcore website.
AI-Enhanced Calls with Dual Microphones
The earbuds include two microphones with AI-enhanced call processing designed to improve voice clarity during conversations. The microphone arrangement and AI processing can help make calls clearer in environments where background noise is present.
This feature supports everyday communication while commuting, working, or moving through busy areas. Call performance can vary with the smartphone, network, environment, and other conditions.
Up to 21 Hours of Battery Life
The earbuds provide up to 7 hours of playback on a single charge and up to 21 hours with the charging case. A 10-minute fast charge can provide up to 2 hours of playback when you need extra listening time. Actual battery life may vary according to volume, connected devices, and usage patterns.
IPX4 Water Resistance for Active Use
The Anker Soundcore C40i features IPX4 water resistance, helping protect the earbuds from splashes and making them suitable for workouts, light rain, and active use. However, IPX4 does not make the earbuds waterproof, so they should not be submerged or used for swimming.
Why Choose These Open-Ear Earbuds?
These earbuds combine a breathable open-ear design with flexible memory titanium construction, secure clip-on wearing, and wireless connectivity. The 12mm × 17mm titanium-coated drivers, Bluetooth 5.4, multipoint support, physical buttons, and AI-enhanced microphones make them practical for everyday listening and calls.
With up to 7 hours of earbud playback, up to 21 hours with the charging case, fast charging, and IPX4 protection, the C40i is well suited to users who want comfortable open-ear earbuds for work, travel, commuting, entertainment, and active lifestyles.





