Welcome to the store! 1. Window Speaker System: The system features high-quality speakers and highly sensitive microphones, designed for counter and two-way communication. 2. Clear Sound Quality: This intercom system utilizes electro-acoustic circuit devices with excellent performance. Both the master and slave machines have clear voices and high voice resolution. 3. Automatic Control: The intercom system employs duplex voice intercom communication technology, which automatically recognizes and processes voice signals, requiring no operation during calls. 4. Wide Application: The intercom system is suitable for locations where security glass is installed, such as bank windows, ticket offices, hospitals, embassy visa offices, and securities companies. 5. Easy to Use: Simply connect the power and external speakers to the main station. The microphone cable is flexible, and there are two knobs to adjust the internal and external volumes. Item Type: Window Speaker System Material: Aluminum Alloy Color: Silver Rated Voltage: 100-240V Output: DC 12V 1000mA Working Voltage: DC 12V 1A Peak Power: 2 x 3W (Max) Frequency Response: 100Hz-12KHz Scope of Application: Suitable for locations where security glass is installed at bank windows, post office windows, embassy visa offices, securities companies, hospitals, stations, etc. 1 x Microphone 1 x Speaker 1 x Power Adapter 1 x Sticker 2 x Wire Fixer 1 x Instruction Your 100% satisfaction is our top priority. We will provide you with the best service. If you encounter any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!