♪ Pull-out portable box&Separately use each other♪ Charging and storage in a fashion portable box,just pull out the charge box,you can use the bluetooth wireless earpiece, when put back in the case the in-ear earphones will turn off and charge automatically.2 sound modes: Stereo and Monaural. Can Work Together or Separately,share or both!
♪ Noise Canceling Mode♪ Bluetooth V4.2 Arbily Wireless Headphones can block out a lot of surrounding noises and do avoid wind noise created during running, biking, jogging,etc.
♪ Light Comfortable Fashion Design♪ Arbily true in-ear Earbuds only 4g,invisible for left or right ear.Three size Earpods make the wearing ultimate comfortable and superb fit.

Ultra-wide frequency response
High-definition bass and super-transparent highs
Ultra-wide dynamic range