Description
The Calltel T400 Mono-Ear Noise-Cancelling Headset is a great affordable headset that is comfortable as it is reasonable. It features a noise-cancelling microphone that automatically adjusts the volume for ease of use and convenience. It features an ergonomic comfortable design with an adjustable headband that allows you to wear it for a long time, making it perfect for all-day working hours. For extra safety, it features acoustic shock protection which limits the acoustics. The earpiece features a soft leatherette ear pad that can be replaced if needed.
The Calltel T400 Mono-Ear Noise-Cancelling Headset is a great affordable headset that is comfortable as it is reasonable. It features a noise-cancelling microphone that automatically adjusts the volume for ease of use and convenience. It features an ergonomic comfortable design with an adjustable headband that allows you to wear it for a long time, making it perfect for all-day working hours. For extra safety, it features acoustic shock protection which limits the acoustics. The earpiece features a soft leatherette ear pad that can be replaced if needed.
- Noise-cancelling microphone
- The cable is durable, can bear 20KG pull, rotate more than 60000 times, 345°
- Acoustic Shock Protection: Acoustic limiting for protection
- Adjustable headband
- Replaceable soft leatherette ear pad
- Microphone: Permanently polarized condenser microphone
- Impedance: 1.0KΩ
- Work Frequency:120 ~ 10k Hz
- Sensitivity: -40dB ± 2dB (f = 1KHz, 0dB) (RL = 2.2K Vs = 3.0V)
- Current consumption@ 2.2V (μA): < 300
- Current consumption: 800μA
- Receiver: Impedance: 300Ω ± 10Ω | Output sound pressure: 105dB ± 5dB |
- Work Frequency: 30~ 17k Hz | Max Input Power: 20mw | Interface: Standard RJ9
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