Professional H andsfree RJ9 Call Center Headset Noise Canceling Binaural Telephone Headphone USB Earphone

Features: 100% brand new and high quality! H andsfree 4-PIN telephone headset. High clear voice communication. 150ohms speaker to ensure perfect voice quality. Headset head can freely telescopic, moderate elasticity, comfortable to wear. Super soft ear cushions make sure comfortable wearing. High durability, fully adapt to high frequency. Specifications: Microphone type: Electrical condenser microphone(ECM) Microphone sensitivity:40db±3db Microphone voltage:2.0v Receiver impedance:150±10 ohm Color:Black Size:165*140*30mm Package size:190*145*40mm Package included: 1 x Headset 1 x User Manual

Headphone with Mic H andsfree 4-PIN telephone headset. High clear voice communication. 150ohms speaker to ensure perfect voice quality. Headset head can freely telescopic, moderate elasticity, comfortable to wear.