Features:

* bluetooth version: V3.0 + EDR
* support agreement: HFP, A2DP, AVRCP
* support 3.5 mm audio input
* range: more than 10 meters
* music play time: 15 hours
* talk time: 25 hours
* standby time: 200 hours
* charging voltage: DC5V / 500 ma
* the charging port: Micro USB
* charging time: 2.5 hours
* trumpet diameter: 30 mm
* built-in microphone, support of digital signal processing echo cancellation technology
* Power display,support iPhone, millet, and all the android mobile phones (cell phone need install app application software ).

* this model is compatible with iPhone, iPod, iPod, HTC, Samsung, LG all mobile phones, tablets, laptops and so on audio output interface of the device.