AEC BQ618 Smart Wireless Bluetooth Stereo Handsfree Earphone with Microphone, Support 3.5mm for Phone / Tablet / PSPs(Black)

Line Length:NoneWith Microphone:YesWireless Type:bluetoothBrand Name:AECConnectors:NoneWaterproof:NoActive Noise-Cancellation:YesSupport Memory Card:NoVolume Control:YesFrequency Response Range:20-20000HzResistance:25?Vocalism Principle:Hybrid technologyModel Number:BQ-618Sensitivity:1105dBStyle:HeadbandSupport APP:NoControl Button:YesBluetooth Version:V4.1 + EDRSupported profiles:HFP, A2DP, AVRCPSupport Apt-x:NoProduct parameters:
Speaker specifications: 30mm
Output power: 32 ohms 45mW
Frequency response: 200Hz-2000Hz
Sensitivity: 120db3db
Signal to noise ratio: ?90DB
Distortion: 0.5%
Bluetooth standard: Bluetooth 4.1+EDR
Supporting protocols: HFP, A2DP, AVRCP
Support 3.5mm audio input
Power supply mode: built-in lithium battery 190mAh
Charging time: 3 hours (please extend the charging time for the first charge)
Effective distance: 10 meters
Working time: more than 10 hours
Standby time: 250 hours
Charging interface: Micro USB
Built-in microphone to support digital signal processing echo cancellation technology

Features:
Smart Bluetooth, wireless HIFI
Floating micro HIFI sound effect