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Full metal body and 3M extension cable with metal sleeve;
The volume of main station and outside speaker can be adjusted separately, and design mute switch for internal and external;
Easy to Install: After fixing the window intercom, connect the outside speaker cable to EXT1 or EXT2 port, then just plug to power;
Has special side tone processing chip and the movement noise function, can effectively improve the noise;
Window intercom system has top-quality speaker and high-sensitive microphone. Especially the metal tube microphone is ideal for the counter dual-way intercommunication;
You can use the conversation between the inside and outside of the window for the customers' evaluation of the salespersons, and for the supervisor's evaluation of each windows. 1.Usage: the bank staff use the master station to talk with guests, and the guest use the substation can talk with bank staff as well. 2.Installation: the master station is installed in the working place and the sub station out of the working room. 3.Application: bank, stock office, hospital, post office, box office, train station, etc. Functions and Features: 1)Full metal jacket, elegance, aesthetic; 2)Hands free two-way talkback full automaticity; 3)Micro computer control circuit with squelch function, can solve echo and squeal problems; 4)Adopt high-powered mic, voice is lifelike, clear; 5)The volume of master station and substation can be adjusted separately; 6)Easy installation, only one wire for connecting master station and substation; 7)Have output for recording, can connect record equipment external; 8)Widely use at any window internal/external intercom, or the place which difficult to talk. Technical Parameters: Working voltage: DC12V Working current: ≤300mA Main Dimension: 130x110x38 mm Substation dimension: 80x20mm Environment tem: -10℃~60℃ Package Includes 1 x Dual-way counter interphone 1 x External speaker 1 x Power adapter 1 x English manual 1 x Double side tape