*BOSS SOUND FLY*? *??Master Replica*??? ?? *Bluetooth 5.0* + EDR + Dual Connectivity? ?? *Stereo Calling* And *DDNc* For Noise Isolation? ?? *Fast Connectivity* (Just AUTO PARING BETWEEN BOTH BUDS )?? COMFORT EAR FITTING..?? ?? *Dolby DTS Support Hi - Res 24BIT Audio*? ?? *Touch Operations* For Call / Media / On Earbuds? ?? *PowerCase Battery Capacity *450mAh*? (Can Charge Earbuds Upto 3 Times)/?