Awei T50 ENC Wireless Headphones 4 Mic Bluetooth TWS Headset HIFI Headphone Touch Control Low Latency Mode ENC Call Earbuds:  Titanium-plated Film High Sensitivity Moving Coil UnitKinesiologyBluetooth 5.3 ChipLong Battery Life Comfortable to Wear to Enjoy MusicErgonomic design of semi-ear fitting ear curve Let the ears stretch freely and bring a more comfortable wearing experience Surround Sound