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Месяц | Минимальная цена | Макс. стоимость |
---|---|---|
Sep-16-2025 | 7.94 $* | 7.40 $* |
Aug-16-2025 | 7.83 $* | 7.46 $* |
Jul-16-2025 | 6.81 $* | 6.78 $* |
Jun-16-2025 | 7.32 $* | 7.41 $* |
May-16-2025 | 6.33 $* | 6.88 $* |
Apr-16-2025 | 7.42 $* | 7.13 $* |
Mar-16-2025 | 7.87 $* | 7.22 $* |
Feb-16-2025 | 7.66 $* | 7.62 $* |
Jan-16-2025 | 7.64 $* | 7.48 $* |
I. Use Environment
1: ambient temperature: - 10 ~40.
2: Relative humidity: 10%-95%.
3: Atmospheric pressure: 86-106 kPa
4: Environmental noise: <60dB(A)
II. Functional Indicators
(1) Microphone
1: Single-pointing anti-noise electret capacitive microphone; SNR greater than 58 dB
2: Sensitivity - 40 +3dB (0dB = 1V/Pa, at 1KHz);
3: Impedance 2.2K ohm;
4: Working voltage 2.0V;
(2) Receiver
1: Broadband high-quality receiver;
2: impedance 150 ohms;
3: Frequency range 100-6600HZ;
4: Distortion < 5%;
5: Sensitivity of 100 + 3dB (1000, 12000, 1500, 2000HZ);
3. Wire Material
1: High-quality swing-resistant, low obstruction PU headphone wire (with bullet-proof wire tension material)
2: Line length 2 m to 3 m (including plugs). (Note: Length is measured by stretching spring line)
3: The catheter is a durable spring tube material.
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