Upgraded version of DSP dual microphone call noise reduction, dual microphones
The main microphone collects human voices, and the secondary microphone collects environmental noise reduction
Intelligent multi-function support for calling name (download TTS-APP)
Built-in high-capacity lithium battery 90 mAh-continuous talk for 8 hours
The latest version 5.0 has low power consumption and stable transmission
Humanized design, both left and right ears can be worn, rotating at 180℃
Support volume adjustment
IOS system supports power display
Support voice switching (Chinese and English)
Smart one-to-two, connect two mobile phones at the same time
Support smart mute function
Specification:
Bluetooth model: F990 (dual microphone passive noise reduction)
Bluetooth chip: Realtek 8763
Bluetooth version: Bluetooth V5.0
Transmission distance: 10 meters
Transmit audio: Class 2 (-6dbm-4dbm)
Charging voltage: DC 5V
Working voltage: 3.7V (3.3-4.2V)
Battery capacity: 90mAh
Charging time: about 2H
Listening time: about 8.5H
Talk time: about 8H
Standby time: about 72H
Charging type: Mirco USB
Speaker size: 13 (mm)
DC impedance: 16Ω±10%
Sensitivity Grade: 111±3dB(at 1KHz 1mW)
Frequency Response Range: 20HZ~20KHZ
Rated Power: 3mW
Maximum Power: 5mW