Description
NOTE:Attention please:this model is standard 4P4C Rj9 jack for telephone,but can not compatible with panasonic Phones & Cisco & Avaya Phonesures: ☂Free your hands:improve efficiency when talking with customers. ☂Noise-proof microphone: high quality speaker and hearing protectionve outside noise. ☂Flexible adjustable: 330 degree rotationst head size easily. ☂Comfortable wearing: extremely soft cushion,protect your ear for long time wearing. ☂Binaural Headset: more comfortable wearing experience and hear perfect voiceification: ☂Microphone type:electret condenser microphone(ECM) Microphone. ☂sensitivity:40d-3db. ☂Microphone voltage:2.0v. ☂Package Included: 1 x 4-Pin RJ9 Crystal Binaural Headset.