Calltel T800 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 omnidirectional 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.<br /> FEATURES:<br /> Noise-cancelling microphone<br /> The cable is durable, can bear 20KG pull, rotate more than 60000 times, 345<br /> Acoustic Shock Protection_ Acoustic limiting for protection<br /> Adjustable headband<br /> Replaceable soft leatherette ear pad<br /> SPECIFICATIONS:<br /> Microphone: Permanently polarized condenser microphone<br /> Impedance: 1.0K<br /> Work Frequency :100 ~ 10k Hz<br /> Sensitivity: -40dB 2dB (f = 1KHz, 0dB) (RL = 2.2K Vs = 3.0V)<br /> Current consumption@ 2.2V (A): < 300<br /> Current consumption_ 800A<br /> Receiver:<br /> Impedance: 300 10<br /> Output sound pressure_ 105dB 5dB<br /> Work Frequency_ 20~ 18k Hz<br /> Max Input Power_ 20mw<br /> Interface: Dual 3.5mm<br /> WHAT'S IN THE BOX_<br /> Calltel T800 Mono-Ear Noise-Cancelling Headset Dual 3.5mm - Black x1<br /> 12 Months