?Satisfying service and 1-year warranty? We promise to help you solve any problem you meet when you use our product until you are satisfied. You can directly contact us via , go to Your Orders - find your order in the list - select “Problem with order” - choose your topic from list displayed - select “Contact seller”. ?Longer battery life? For Bluetooth connection, the longest use time is 30 hours, which means you can listen to up to 360 songs. For USB dongle connection, the longest use time is 12 hours. On average, charging the headset for 8 minutes, you can use it for 2 hours. ?Immersive 4D experience? The headset is equipped with 4D dynamic moving coils which can provide you an immersive 4D experience when you play games. This is a brand-new attempt. ?Universal Compatibility? Fediker w3 supports 2.4G 2.4GHz Dongle and Bluetooth connection, which means the earbuds can be connected to PC, PS4, PS5,Switch, Laptop, tablet, mobile phone, etc.. ?High-resolution audio? W3 is equipped with two 40mm drivers and two 30mm 4D drivers, allowing you to clearly hear explosions, character sounds, gunshots, and faint footsteps while playing games. Highly flexible 4D dynamic moving coil can produce powerful bass and clear treble.