<p>Wireless intercom doorbell - 1 outdoor doorbell can be paired with 1 indoor doorbell, the perfect combination allows you to communicate with visitors at your door.</p> <p> </p> <p> </p> <p>Intercom Two-Way - When someone presses the call button on the outdoor unit, the indoor buzzer will ring immediately to remind you. You can press the answer button to talk to someone outside.</p> <p> </p> <p> </p> <p>Clear voice - Built-in high-sensitivity microphone and speaker, the signal 2.4 GHz provides clear and fluent sound effect when communicating. Effective transmission distance up to 300 meters</p> <p> </p> <p> </p> <p>Easy to use - Ultra mini size ensures perfect portability and easy installation, small and beautiful, easy to install. Suitable for home, factory, hotel, hospital, supermarket and office. adventure! Product transmission distance: 200 meters in open space; 5-50 meters if there are obstacles.</p> <p> </p> <p> </p> <p>feature</p> <p> </p> <p> </p> <p>1. The frequency of use of this product complies with national regulations and will not produce harmful electromagnetic interference. It can be used universally.</p> <p> </p> <p>This device complies with FCC, CE and CCC rules and regulations.</p> <p> </p> <p> </p> <p>2. The outdoor unit is easy to install and battery-remove, using 4 AA batteries (batteries not included), and the indoor unit uses a rechargeable lithium battery.</p> <p> </p> <p>The outdoor chime is powered by 4 alkaline batteries for easy battery replacement</p> <p> </p> <p>3. The outdoor unit has a long service life, and 4 batteries can be used for more than six months.</p> <p> </p> <p>Low power consumption, outdoor bell standby time up to six months </p> <p> </p> <p>4. Speaker sound, adjustable volume, changeable ringtone, clear intercom sound quality, can be used for mobile intercom.</p> <p> </p> <p>The speaker is adjustable, the sound is clear and it can be used as a mobile phone walkie-talkie.</p> <p> </p> <p> </p> <p>5. Long working distance, the maximum opening distance is 200 meters.</p> <p> </p> <p>Ultra-long wireless distance up to 200M</p> <p> </p> <p> </p> <p>6. Easy to install, directly stuck to the wall with 3M glue.</p> <p> </p> <p>Easy wall mounting with 3M adhesive tape</p> <p> </p> <p> </p> <p>7. Through code-to-code learning, one outdoor unit supports N indoor units without interfering with each other and without changing the code.</p> <p> </p> <p>By learning the code, the outdoor chime can be paired at the interior chime. An external ringtone can be paired with N internal ringtones without interfering with each other.</p> <p> </p> <p> </p> <p>8. Exquisite and small, beautiful and generous. Size : 100*60*14.8mm</p> <p>Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference in light and display, there will be some color difference, depending on the physical object received Delivery Quantity: (according to the main picture)</p>