Featuresr wireless bluetooth 42 quick pairingr headset with bluetooth v42 version compatible with most bluetooth enabled devices simple quick and safe pairingr ergonomical design comfortable to wearr sporty idea injected light in weight rubber coating comfortable to wear for a long timer noise cancelling crystal high quality soundr in ear headset clear crystal hd sound take phone calls with built in microphone convenient volume controlr hands free mutifuctional keysr easy mu