Foldable design、Compact Construction and wearing very comfortable、easy to store and carryHumanized design、 hang on ears、 free to do sportsStereo and clear voice quality、 supports phone calls answering and music listeningEasy-switching between music and calls、 you will never miss a callVoice prompt in EnglishIncoming number reportingThe 6th generation of CVC noise reductionSupport 3-way conferencingVolume adjustableSupport previous and next songTechnical index:Correspond with: V4.0Support: HSP HFP A2DP AVRCPFrequency range:2.4026GHz - 2.480GHzTransmitting power:Class 2Wireless working distance:<10mCharge Time:<3 HoursStandby Time:>110 HoursTalk Time:>12 HoursMusic Time:> 10 HoursNet weight: about 40gPackage:1 x Bluetooth Headset1 x Mini USB cable1 x Manual