The pager is compact and , easy to carry A variety of ringtones to choose from You can use the mobile app to check the situation Can also be used as a doorbell For elderly emergency calls Product Detailes: [Wi-Fi Connection & Smart APP Control] This caregiver pager connects with cell phone through Wi-Fi to realize phone APP remote operation(First connection needs to that the cell phone - pager - call button connection is the same Wi-Fi network environment), no matter how far away it is, the phone can clearly receive the alarm signal after the SOS call button is triggered. Remind caregivers to of the elderly at any time. [Easy to Use] The elderly life alert is easily used by connecting to the power supply via the configured USB Cable without installing batteries. No need to worry about running out of battery power. After pairing the cell phone with the pager, you can set up additional call buttons to match on the cell phone APP according to your specific needs. The phone can add 100 call buttons to work with, and the SOS call button name can be customized for easy differentiation. Color: White Material: plastic Package Contents: 1 x host 1 x SOS button 1 x usb data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.