Simple design, with EU / USA/domestic patent                                        
RF: phone class antenna, stable connection more than 15m( 30m indoor in non-obstacle environment)   
Specialized speaker driver, enjoy crystal clear sound with powerful bass 
Charging contacts same as Jabra&Bragi, easy and durable to charge
4h palying time, 500mah portable charging case box to extend 15 hours                                                                                         
Ergonomics design, comfort and stable fit to run
Noise Isolation
Three different sizes of wingtips and ear tips for customer option     
IPX5 sweat resistance
Button controls: backward, play/pause
Microphone in Single earbu