HANDS FREE: Adopting two-way voice intercom communications technology, automatic identification of processing speech signals during a call does not require any action. ANTI-INTERFERENCE: The side sound elimination chip has automatic noise suppression function, which can effectively improve howling. HIGH SOUND QUALITY: Comprehensive application of electro-acoustic technology experience, the selection of high performance electro-acoustic circuit design, the output power up to 3W, voice clear and loud voice distinguished high. EASY TO INSTALL: Outside the machine's microphone and speakers to use the integration of design and front-line system of the host to connect, easy installation. GUARANTEE: 1 year quality service. Any quality problem of the item,please contact our customer service team directly.