QCY Crossky GTR2 Open Ear Headphones Bluetooth 5.4 Wireless Earbuds with Earhooks, 28H Playtime, Muiltpoint Connection, IPX5 Waterproof, Comfortable Ear Buds Compatible with iPhone & Android

Thanks to the smart spacial space sound algorithm, QCY Crossky GTR2 earbuds deliver a perfect ambience. Special bass tubes are applied to add driver unit weight and reduce resonance frequency, making bass richer like ever.