These Dual Wireless Headphones with Powerbank are designed with smart technology and a golden rim for style statement! They are also very convenient and easy to ! 
Whenever you are down to the last drop of energy in your phone, just plug it into this portable charger and your phone will come back to life like it just had a triple energy shot. The on/off switch allows you to control how much power you want to use and save some for the later. 
waterproof standard: IPX-4
battery capacity(mah): 300mAh
battery indicator: Digital Display
wireless delay time: above 60 ms
brand name: VALDUS
private mold: Yes
Packaging and delivery
1*Earphone BQ401*Gift Box or Customized Box1*Charging Cable1*Specification