Qcharx Harmony Auricular TWS Bluetooth 5.3 White

Qcharx Headset White Cable Type C

*Microphone parameters:

-Final sensitivity: -42+3DB(at0dB-1Vbar.1kHz)
-Frequency range: 100--10000Hz
-Directivity: Omnidirectional
-Output impedance:2.2k?(max). at 1KHz
-Operating Voltage Range: 1~~~10v 100--10000Hz
-Type: Electret condenser microphoneSignal-to-noise ratio: >55dB.
-Current consumption: 150~~~500uA
-Base operating voltage: 3V.

*Speaker parameters:

-Impedance: 32 15% at 1kHz
.-Sensitivity: 105dB 3dB finish at 1kHz
-Frequency response: 20Hz?20KHz (shown in figure.1)
-Nominal input: 2.65mW
-Maximum input: 3-8mW
-Noise test: 252mV audio signal, frequency sweep in the range of 100Hz~3.4kHz.
-Sensitivity difference between left and right ear: ?3dB(at 1kHz).

Qcharx Headset White Lightning Cable

*Microphone parameters:

-Final sensitivity: -42+3DB(at0dB-1Vbar.1kHz)
-Frequency range: 100--10000Hz
-Directivity: Omnidirectional
-Output impedance: 2.2k?(max). at 1KHz
-Operating voltage range: 1~~~10v100--10000Hz
-Type: Electret condenser microphoneSignal-to-noise ratio: >55dB.
-Current consumption:150~~~500uA
-Base operating voltage: 3V.*

Speaker parameters:

-Impedance: 32 15% at 1kHz.
-Sensitivity: 116dB 3dB finish at 1kHz
-Frequency response: 20Hz?20KHz (shown in figure.1)
-Nominal input: 2.65mW
-Maximum input: 3-8mW
-Noise test: 252mV audio signal, swept in the frequency range from 100Hz to 3.4kHz.
-Sensitivity difference between left and right ear: ?3dB (at 1kHz).

Qcharx Pulse Headband Headset in Beige.

-Function: Audio + call.
-Bluetooth Version: V5.3
-Charging time: 3h
-Charging interface: Type C
-Battery capacity: 500 mAh
-Autonomy: Music (60-70 h) and Call (50-60 h).
-Noise reduction.

Qcharx Sound Headset TWS in White colour.

-Function: Audio + call.
-Bluetooth Version: V5.3
-Charging time: 2H(Case) 1,5H(Earphone)
-Charging interface: Type C
-Headset battery: 40mAh
-Case battery: 400mA
-Autonomy: 6h (80%)
-Standby time: 40 h
-Call time: 3.5 H
-Noise reduction.