Ujjdwiurgh Sound Speaker Infrared Induction Voice Prompter Welcome Ring Anti-Theft Audio Entrance Greeting Reminder

Easy to install and operate. Simple installation, adhesive backing can be pasted, and the person is automatically sensed inside and outside. The adhesive backing can be pasted or screwed, and it can be installed and used inside and outside . The induction design automatically broadcasts the person , and the sound is loud, so that the elderly can hear it clearly. 3609 rotatable design, equipped with voice, broadcast function, can be used as a U disk, and the ringtone can be changed. Smart voice doorbell, say goodbye to knocking on the door wireless doorbell, extraordinary and carefully made doorbell. It can be heard in a wide range, and the 50-meter ringtone covers the whole house, just like the sound of pleasant sound without noise. It can be inserted into the computer and used as a mobile U disk, and control can also be changed. The ringtone can be freely downloaded and used