Multi-task effortlessly by talking on your phone while driving or working with the Cellet Universal mono 2.5mm hands-free headset with boom microphone. Featuring a heavy duty adjustable headband and flexible boom microphone, the headset can accommodate various head sizes and desired angles. Featuring an inline control, it allows you to activate your smartphone’s personal voice assistant, play/pause/skip music and answer/hang up phone calls. The headset can be worn in either the right or left ear and the comfortable large ear speaker produces exceptionally clear sound quality. The Cellet headset is Universally Compatible with any devices containing a 2.5mm headphone jack.