Calltel T400 Mono-Ear Headset - Noise-Cancelling Mic - 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? ± 10? 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 What's in the box 1 x Calltel T400 Mono-Ear Headset - Noise-Cancelling Mic - Dual 3.5mm Jacks