Arbily G5's both earbuds can be used for mono mode because both earbuds can be the primary earbuds that can connect with your cellphone directly.
Want the perfect sports partner？
Comfortable fit, 3 pairs of silicone replacement ear tips in various sizes to accommodate for different types of ears,no worry about the earphones slipping off when running.
Want to focus more on surroundings while walking or driving?
Simply pick either earbud as the monaural mode.
Want to take phone calls with one earbud?
There are microphones on both earbuds, so you can take either one for calls.
Want to be immersed into music?
Simply pick both earbuds as the binaural stereo mode.