MSSC ~ Mic Sensitivity Sound Compression: (Reducing Harmful Gunfire or Impulse Noise above 85db)
SA ~ Sound Amplification: (Enhancement of Low-Level Exterior Sounds up to 6x)
Stereo Sound Left & Right Ear
Making or Answering Phone Calls
Full Auto Pairing
Directional Microphone
Good RF Sensitivity Reliable Signal
Automatic Turn On/Off and Charge
Bluetooth Chipset
Rechargeable Lithium-Ion Battery
Talk Time up to 4 Hours
Playing Time up to 3.5 Hours
Charging Box up to 3 Full Charges 12 Hours from Case: (3 Four Hour Charges) Charging Time 1.5 Hours Standby Time Up to 100 Hours Waterproof (Just the Earbuds not Charging Case)