Equipped with FreePods 4, stay in silence whenever you want. Advanced ANC technology can get rid of up. Transparency lets in ambient sound while earbuds are in ears. 4-mic Proprietary Noise Reduction in Calls. Powerful bass by 10mm drivers made with composite diaphragm provides the extraordinary music experience. Oraimo exclusive audio algorithm guarantees the best musiclistening of Afrobeat. Because of latest Bluetooth technology and powerful batteries, FreePods 4 can provide up to 35.5-hr musiclistening in ANC off mode and 29-hr in ANC on mode. Fast Charging Thanks to built-in fast charging technology, you can get 170mins' music-listening with just 10mins' charging. oraimo Sound App Connectivity, Low-latancy Game Mode, Google Fast Pairing, Automatic Pop-up Window, IPX5 splash proof and sweat protection, Antibacterial Eartips.