Tosuny Wireless Voice 2-Way Intercom Doorbell with Built-in Speaker， Home Security Access Control Sy
<p><b>Color:</b> default</p><p><b>Features:</b> </p><ul><li>【Wireless Intercom Doorbell】- 1 outdoor-bell can paired with 1 indoor-bells, the perfect combination allows you to communicate with visitors outside the door.</li><li>【Dual-Way Intercom】- When someone press the call button on outdoor unit, the indoor bell will ring immediately for reminding you. You can press the response button to talk with the people outside.</li><li>【Clear Voice】- Built-in high sensitivity microphone and speaker, 2.4GHz signal ensure clear and smooth sound effect in communication.The effective transmission distance can be up to 300 meters</li><li>【6 Months Standby Time】- The doorbell is powered by 4 alkaline batteries.Low doorbell power consumption, long standby time, outdoor clock standby time of up to 6 months, greatly saving you energy.</li><li>【Easy to Use】- Ultra mini size ensure perfect portability and easy installation, small and nice, easy to install.Apply to house, factory,...