The TW101 Easter Church Intercom Dualway Bank Store Window Counter Interphone System is a professional communication system designed for various establishments such as banks, hospitals, bus stations, and more. It features a maximum working current of 1A and main and secondary speakers with a power output of 3W each. With a compact size and made of durable plastic, this intercom system supports two-way communication, volume control, and automatic squelch function for clear speech. Perfect for drive-thru windows, this system offers efficient communication and convenience for businesses. Voice communication; signals can transmission simultaneously from different directions;so bank intercom can automatic recognize and process the speech signals; much clear sound; less statics High power output;clear voice and high speech resolution; window speaker intercom system can be used at a driver window to improve communication Easy to install; just need to connect the outside speaker cable with AUX in jack; and plug the power adapter; it support external microphone speaker and recording Volume control; the main station and outside speaker volume can be adjusted separately; the left volume knob works for main station; and the right one is used for speaker volume Window speaker system comes with double adhesive tape; so the outside speaker can hangs on the wall Flexible microphone; gooseneck design of head unit microphone; can be bent at any angle to get the best angle for you No noise interference; use 4-core aluminum foil shielded wire noise cancellation; clearer sound