FCC ID: 2AAR8TW102; 2m extension cable with metal sleeve; 6.5ft connection line between the main unit and auxiliary unit; more reasonable to install with stainless steel wire protection tube

Enjoy wireless freedom; the Mic jack can use TT123 wireless microphone to achieve freedom of movement within 164ft range; connect automatically within 3.2ft

Easy to install; just to make a small hole of about 0.7 inches in the glass; connect the external machine cable to the host through the small hole

Two-way voice intercom communications technology; automatically identify the processing speech signals during a call; window speaker doesn't require any action

Voice resources input; connect the signal input port to computers, mobile phones and other devices; broadcast information for customers