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Upgraded version of DSP dual microphone call noise reduction, dual microphonesThe main microphone collects human voices, and the secondary microphone collects environmental noise reductionIntelligent multi-function support for calling name (download TTS-APP)Built-in high-capacity lithium battery 90 mAh-continuous talk for 8 hoursThe latest version 5.0 has low power consumption and stable transmissionHumanized design, both left and right ears can be worn, rotating at 180℃Support volume adjustmentIOS system supports power displaySupport voice switching (Chinese and English)Smart one-to-two, connect two mobile phones at the same timeSupport smart mute functionSpecification:Bluetooth model: F990 (dual microphone passive noise reduction)Bluetooth chip: Realtek 8763Bluetooth version: Bluetooth V5.0Transmission distance: 10 metersTransmit audio: Class 2 (-6dbm-4dbm)Charging voltage: DC 5VWorking voltage: 3.7V (3.3-4.2V)Battery capacity: 90mAhCharging time: about 2HListening time: about 8.5HTalk time: about 8HStandby time: about 72HCharging type: Mirco USBSpeaker size: 13 (mm)DC impedance: 16Ω±10%Sensitivity Grade: 111±3dB(at 1KHz 1mW)Frequency Response Range: 20HZ~20KHZRated Power: 3mWMaximum Power: 5mW
EAN: 5714122423641
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