Let's happy everyday and anytime.                                                                                                                                                     Bluetooth V4.1
<br />Portable lightweight and sweatproof design
<br />Built-in microphone
<br />Built-in rechargeable Li-ion battery
<br />Multipoint pairing (connect 2 bluetooth device)
<br />Support voice prompt ( in English)
<br />Support reporting phone number when calls come.
<br />Support HD music playing
<br />Built-in 14.2mm nedymium driver
<br />Clear bass resonance, CVC wind noise reduction, and superior sound isolation
<br />Specifications:
<br />
<br />Bluetooth specification: 4.1+EDR
<br />Bluetooth profiles:HEP1.6,SHP1.2,AVRCP1.4,A2DP1.2
<br />Noise reduction:CVC6.0
<br />Talk time: up to 4 hours
<br />Standby time: up to 100 hours
<br />Charging time: about 2 hours
<br />Size:4.5cm
<br />Please note that there is only ONE single headphone in the package, not a pair.
<br />Package Includes:
<br />1 x Stereo Bluetooth Headset
<br />1 x USB charger cable
<br />1 x User Manual