Power status of indicator light is known in real time.Automatic binaural pairing, that is, even without waiting for the earphone to be taken out of the charging bin (power-on), the binaural automatic pairing instantly. Stupid operation, headphones into the warehouse (power off).3D subwoofer meets the high-quality moving coil unit of your picky ears, and the sound quality is upgraded again, making people's voice clearer, the middle and high frequencies more thorough, and the subwoofer more sense.Bilateral calls are more enjoyable. The left and right ears are equipped with highly sensitive microphones, which makes binaural calls clearer and communication smoother.