Welcome to our store！</br>1、Streamlined design, the main unit is made of aluminum alloy, strong and durable. 2、Single cable connection, easy installation. 3、High quality loudspeaker for main unit and extension, high sensitive microphone for two-way intercommunication. 4、Simple to operate. No need to press any button to achieve auto two-way intercommunication. 5、Double-track adjustment with indicating light with spare audio jack. <div class="wang-edit-text"><span style="font-size:16px;font-family:Arial;">Two-way voice intercom counter interphone adopts auto dual-way intercommunication technology, automatic indentification of processing speech signals during a call dose not require any action, ideal for the bank, securities, hospital, bus station etc.</span> <span style="font-size:16px;font-family:Arial;"><strong>Features:</strong></span> <ul> <li> <span style="font-size:16px;font-family:Arial;">Streamlined design, the main unit is made of aluminum alloy, strong and durable.</span> </li> <li> <span style="font-size:16px;font-family:Arial;">Single cable connection, easy installation.</span> </li> <li> <span style="font-size:16px;font-family:Arial;">High quality loudspeaker for main unit and extension, high sensitive microphone for two-way intercommunication.</span> </li> <li> <span style="font-size:16px;font-family:Arial;">Adjustable volume with independent switch.</span> </li> <li> <span style="font-size:16px;font-family:Arial;">Simple to operate. No need to press any button to achieve auto two-way intercommunication.</span> </li> <li> <span style="font-size:16px;font-family:Arial;">Double-track adjustment with indicating light with spare audio jack.</span> </li> </ul> <span style="font-size:16px;font-family:Arial;"><strong>Specification:</strong></span> <span style="font-size:16px;font-family:Arial;color:#E53333;">Working Voltage: DC12V</span> <span style="font-size:16px;font-family:Arial;color:#E53333;">Plug: US 110-240V</span> <span style="font-size:16px;font-family:Arial;">Max Working Current: 1000mA</span> <span style="font-size:16px;font-family:Arial;">Main Sound (sub sound): 2W-2W 100Hz-12KHz</span> <span style="font-size:16px;font-family:Arial;">Outside Microphone: -42Db</span> <span style="font-size:16px;font-family:Arial;">Inside Microphone: -42Db</span> <span style="font-size:16px;font-family:Arial;">Audio Output: Dual-way&nbsp;</span> <span style="font-size:16px;font-family:Arial;">Main Box Size: 15.8 * 8.7 * 4.6 cm/6.2*3.4*1.8in</span> <span style="font-size:16px;font-family:Arial;">Deputy Box Size: 7.8 * 2.0cm/3.1*0.8in</span> <span style="font-size:16px;font-family:Arial;">Package Weight: 678g/23.9oz</span> <span style="font-size:16px;font-family:Arial;"><strong>Package List:</strong></span> <span style="font-size:16px;font-family:Arial;">1 * Dual-way Counter Interphone</span> <span style="font-size:16px;font-family:Arial;">1 * External Speaker</span> <span style="font-size:16px;font-family:Arial;">1 * Power Adapter&nbsp;</span> <span style="font-size:16px;font-family:Arial;">1 * User Manual</span> <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> 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>