LazChoice BEST Dual Dynamic Driver Unit HiFi Wired Earphone Quad-core Speaker 3.5mm In-ear Stereo Bass Sport Running Headset Flexible Cable with Microphone Built-in Volume Key

QKZ. Wide dynamic range, Dual bass sound unit design, a broader range, Excellent bass response, Connect to all MP3 players and digital audio device, Functional wired controller for mobile phone, easy switch between music and communication. 3.5mm quality audio connecting cable is compatible for mobile phones and tablets, TPE anti-winding design enhances the durability, flexibility and longevity of the cable, Remote control button function support line control: The next song The last song Pause Hung up the phone. Main Feature: Frequency Response: 20Hz~20KHz Impedance: 16. Sound Pressure Level SPL): 100dB Connector: 3.5mm stereo. Cable Length: 1.2m Type: In-ear Ear-hook. Sound: Bass stereo sound Microphone: Yes