1.Bluetooth V.3.0 +EDR    
2. Earphone connecting time:2-3 hours Waiting time:150 hours                                   
3.PAD and other bluetooth equipment inside 10m.                                                               
4.The flip-up lenses block 400% of all UVA, UVB,
  UVC and harmful blue light
5. Operating frequency range:2.4GHz－2.480GHz