B luetooth W ireless Headset Hands-free RJ9 Call Center Headset Noise Canceling Binaural USB Earphone

Features: 100% brand new and high quality! Hands-free 4-PIN telephone headset. High clear voice communication. 150ohms speaker to ensure perfect voice quality. Headset head can freely telescopic, moderate elasticity, comforT ableto 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

Hands-free RJ9 Call Center Headset Noise Canceling Binaural USB Earphone Hands-free 4-PIN telephone headset. High clear voice communication. 150ohms speaker to ensure perfect voice quality. Headset head can freely telescopic, moderate elasticity, comforT ableto wear.