KZ Z3 TWS Bluetooth 5.2 Koptelefoon True Draadloze Game Oordopjes Touch Control Noise Cancelling HiFi Sport Headset 4-Unit Hybrid Technology Acoustic Hybrid Wireless Earphone.Hight-end products Designed for Music Producer and audiophile.1BA+1DD on one side,there are four units on both sides Professional acoustic configuration in...