Product Information
What is the difference between wired and wireless earphones?
Wired earphones offer zero-latency, lossless audio through a physical connection, ideal
for audiophiles and professional editing. Wireless earphones provide maximum mobility
and smart features, using Bluetooth technology for seamless device pairing.
Are Cosmo headphones compatible with all devices?
Yes. Our headphones support Bluetooth 5.3 for universal wireless compatibility and
feature a standard 3.5mm jack for wired connections to smartphones, laptops, and
professional audio interfaces.
Usage & Connectivity
How long does the battery last on Bluetooth models?
Our Bluetooth earphones offer 24+ hours of playback on a single charge. Our Over-Ear
headphones extend this to 40 hours with Active Noise Cancellation enabled.
Warranty & Returns
Do the products come with a warranty?
Every Cosmo product is backed by a 2-year international warranty covering manufacturing
defects and hardware performance issues.
Maintenance & Care
Storage
Always store your earphones in the provided case to prevent cable stress and moisture buildup.
Cleaning
Use a dry, soft microfiber cloth to clean the ear tips and drivers weekly for optimal sound clarity.