Microphone

• Microphone pickup distance: 3m radius
• Microphone type: Omnidirectional
• Frequency response: 100Hz ~8kHz
• Sampling Rate: 16kHz
• DSP: AEC, ANS, AGC
• No of Microphone: 4
• SNR (MEMS unit): 65dBA
• Sensitivity: -26 dBFS

Power Supply

• Power Method: Built-in battery, 1000mAh/3.7V
• Usage Time: 8 hours talk time, >1 year standby
• Battery charging 5V/1A ; fully charged in 3 hour

Speakerphone

• Channel configuration: 1.0
• Power: 1×3W rate d, 5W Max
• Impedance: 4ohm
• SPL (Maximum): 80 dBSPL @1m, pink noise, max power
• Distortion level: <3% @1W, 1kHz
• Signal-to-noise ratio: >75dB
• Frequency response: 100Hz~20k Hz

Bluetooth Parameters

• Number of Bluetooth devices: 1
• Version: BT5.3+BLE
• Operating frequency: 2.4GHz
• Operating distance: 10m
• USB Bluetooth dongle: Supports audio playback , high-definition audio input, compatible with Windows 7/8/8.1/10, MAC OS 10.10 and above

I/O Interfaces

• USB: Built-in USB cable with USB-A interface
• Buttons 7 buttons: Powe r, Answer/Hang-up, Mic mute, Speaker
  mute , Bluetooth, Vol +, Vol –
• Indicator lights: Supported (Battery, Volume, Mute, Incoming call, etc.)

Dimensions & Weight

• Product Dimensions: 120mm×120×36.5mm
• Packaging Dimensions (L×W×H): 157mm×157mm×43.5mm
• Net weight: 255g
• Gross weight: 350g

Environmental Conditions

• Operating temperature: 0°C~40°C
• Operating humidity: 10%~90%RH
• Storage temperature: -10°C~60°C
• Storage humidity: 10%~90%RH
• Altitude: Up to 5000 meters above sea level