At only 7 grams the Talknano PRO is so light and compact that you"ll want to wear it all the time! It can be worn on your left or right ear and its in-ear speaker design means that it can be worn comfortably with or without the supplied ear-hook.But don"t be fooled by its diminutive size - with 4 hours talk time, 140 hours standby as well as noise and echo cancellation, this stylish, yet discreet headset doesn"t compromise on quality and performance.