Specifications driver size (mm) 10 number of microphones 6 driver sensitivity at 1khz/1mw (db) 100 db spl khz dynamic frequency response range (hz) 20 hz - 20 khz impedance (ohms) 16 bluetooth version 5.3 bluetooth frequency 2.4 ghz - 2.4835 ghz bluetooth transmitter power <15 dbm (eirp) charging time (hours from empty) 2 maximum music play time with anc off (hours) 8-10 maximum play time (hours) 40 true adaptive noise cancelling carrying case jbl legendary pro audio sound spatial sound ip code ipx5 charging cable voice assistant integration ambient aware built-in microphone hands free call talkthru touch control adaptive noise cancelling active noise cancelling wireless water resistant charging case speed charge rechargeable battery warranty yes delivery free city centre yes