Product description
Mobile AccessoriesHeadphones from Fosi Audio
Fosi Audio IM4 is a pair of open back in-ear headphones that offer detailed sound and an ergonomic design. These headphones are equipped with 10 mm beryllium drivers and N52 magnets to ensure high sound quality. The advanced dual-chamber design contributes to clear audio reproduction. IM4 is targeted at users seeking high-quality headphones for both music listening and gaming.The headphones feature a CNC-machined aluminum shell that provides a stable foundation for acoustics and reduces unwanted vibrations. Each pair weighs only 7 grams per earpiece, making them comfortable to wear during long listening sessions. Included are three types of ear tips (Balanced, Bass, and Deep Bass) that allow customization of sound character. The connection is made via a 3.5 mm plug, and the cable is detachable with a 2-pin 0.78 mm connector, making it easy to switch to a balanced 4.4 mm cable as an option.
Summary
- Open back in-ear headphones with detailed sound
- 10 mm beryllium drivers and N52 magnets
- Suitable for music listening and gaming
- Ergonomic design for long-lasting comfort
- Detachable cable with 3.5 mm connection
Article number:
Our article number: 39518
Manuf. article number: IM4-B
Brand
Fosi Audio is an innovative audio company that has earned a reputation for making high-quality HiFi equipment more accessible to a wider audience. Since its founding in 2017, the company has focused on combining advanced audio technology, compact design, and competitive pricing to deliver products appreciated by both audiophiles and everyday users. Guided by the motto “Hear the Unheard,” Fosi Audio strives to reproduce music with exceptional clarity, detail, and emotion while keeping its products simple to use and accessible to enthusiasts around the world.
The company was founded with the ambition of challenging traditional perceptions of HiFi by offering amplifiers, DACs, headphone amplifiers, speakers, and other audio solutions that deliver outstanding performance without the premium price tag often associated with high-end audio. Through in-house research and development, close collaboration with users, and a strong culture of innovation, Fosi Audio has grown into one of the most recognized brands in the modern audio industry. Its products are now sold in more than 150 countries and have received praise from both technology media and audiophile communities for their combination of sound quality, functionality, and value.
Specifications
Audio output
| Frequency response | 20k Hz |
| Impedance | 21 Ω |
| Sensitivity | 109 db |
Connection
| Connection | 3.5mm |
| Wireless | No |
Properties
| Color | Black |
Warranty
| Manufacturer's warranty | 1 year warranty |