Welcome to our store！</br> 1、Speaker Volume Adjustable: Counter intercom speaker is loud and adjustable with clear sound. Can be easily mounted on the wall with tape, ideal for transmission distances up to 200 meters without interference. 2、Perfect Combination: Indoor intercom is perfectly combined with the outdoor intercom, allowing you to talk to visitors outside your door. The doorbell sound effect is highly restored, allowing you to identify visitors outside the door according to the sound. 3、3W Power: Dual way counter intercom is designed with electro acoustic circuit devices, upgraded sound quality and high power output of 3w for both main and sub units, with clear and bright sound and high voice resolution. 4、Fully Automatic Call Control: Window two way intercom system applies fully automatic call control, using duplex voice intercom talking technology, automatic recognition and processing of voice signals, the call process does not require any operation. 5、Widely Used: Window intercom system is widely used in homes, bank windows, ticket offices, hospital windows, post office windows, securities windows, embassy visa offices, securities companies, hospitals, stations and other places where security glass is installed. <div class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: Dual Way Counter Intercom Material: ABS Color: White Power Supply Specification: US Plug 100-240V Power Output: 2x3W (Maximum) Call Ringing: 30 Seconds Call Volume: 70dB to 100dB Adjustable Frequency Response: 100Hz to 12KHz Internal Microphone: -42dB External Microphone: -42dB Operating Temperature: -35°C to +50°C Relative Humidity: 10% to 90% (RH) <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> </div> <div>1 x Indoor Unit</div><div>1 x Outdoor Unit</div><div>2 x Cables</div><div>2 x Stickers</div><div>4 x Long Screws</div><div>4 x Short Screws</div><div>4 x Screw Set</div><div>1 x Power Adapter</div><div>1 x 2m Cable</div><div>1 x Instruction Manual</div> Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>