This headset can listen to music ,GPS, radio information from your phone or laptop which has bluetooth function (A2DP profile supported) . and also support talking function by built in microphone, come with retailer package and English user guider ,and provide English user manuel. Specification : -Bluetooth version : 3.0+EDR -Connect two phones at the same time -Talking time: up to 10 hours -Offer two different size earbuds : small and normal one . the material was made by high quality of silicon -Listen to music function -DSP technology to block nosie -Offer 1 earphook -Support USB charging Package contains: 1x earhook 2x crystal earbuds 1x USB charging cable 1x English user manuel