Happy Hours - Mini Wireless Bluetooth ISSC4.1 Q5 Ear-hook Headphone / Double-ear Universial Micro Inner-ear Stereo Sports Headset / Call Remind Multi-function for All Smart Phone(Golden) Bluetooth V4.0+EDR, fit for almost all the iphone IOS / Android / Pad / PC device with bluetooth function; Intelligent voice control and Human voice remind,CVC6.0 noise reduction; Size :23 x 23 x 10mm ,weight :6g and no flash, super incisible;(Double-ear Universial) Built-in Li Polymer battery,standby time: 120 hours ,voice call for about 8 hours and music playing for about 4 hours; Possible to connect it with two smartphones at the same time and ready to answer the incoming call of one phone any time.