AEC BQ-618 Noise Reduction Wireless Bluetooth Stereo Headphone Earphone Headset with Mic for Cellphone Tablet PC<br>Features: <br>Model: AEC BQ-618Intelligent voice navigationIncoming call voice promptBluetooth version: V3.0+EDRSupported profiles: HFP， A2DP， AVRCPSupport 3.5 mm stereo audio inputOperation Range: 10 metersPlay time: up to 10 hoursTalk time: 12 hoursstandby time: 200 hoursCharging voltage: DC5V\/500mACharging port: Micro USBCharging time: 2.5 hoursSpeaker diameter: 30mmBuilt-in microphone support digital signal processing echo cancellation technologyBattery capacity display， support iPhone ， MI and all Android mobile phone(need to install app application software)<br>Operation specification:<br>Charging headphone(connect to PC or power adapter through USB cable)Charging: please connect headphone to PC through attached USB cable(or optional USB charger). Red indicator is on while charge. Fully charge may take up to 2hours and a half. if the power is pretty low. You can also talk or listen to music when charge. Disconnect the headphone from charger when charging completed， then unplug the charger from  AC outlet.Battery status: you can read battery status directly on mobile phone screen by connecting headphone to phones like iPhone and MI. But for other Android mobile phone， app application software must be installed before reading. Red indicator flashes and alarm sounds to report the low battery.<br>Package Included: <br>1 x AEC BQ-618 Wireless Bluetooth Headphone1 x USB Cable1 x Manual<br>Detail Pictures: