Calltel T400 Mono-Ear Noise-Cancelling Headset – Dual 3.5mm Jacks

The Calltel T400 Mono-Ear Noise-Cancelling Headset is a great affordable headset that is comfortable as it is affordable. It features a noise-cancelling microphone that automatically adjusts volume for ease of use and convenience. It features an ergonomic comfortable design with 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 itself features a soft leatherette ear ...pad which can be replaced if needed. FEATURES:
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 SPECIFICATIONS:
Microphone: Permanently polarized condenser microphone
Impedance: 1.0K?
Work Frequency :120 ~ 10k Hz
Sensitivity: -40dB ± 2dB (f = 1KHz, 0dB) (RL = 2.2K Vs = 3.0V)
Current consumption@ 2.2V (?A): < 300
Current consumption: 800?A
Receiver:
Impedance: 300 Ohms ± 10 Ohms
Output sound pressure: 105dB ± 5dB
Work Frequency: 30~ 17k Hz
Max Input Power: 20mw
Interface: Dual 3.5mm What’s in the box
Calltel T400 Mono-Ear Noise-Cancelling Headset Dual 3.5mm – Black x1