In terms of connectivity, you will need:
- Wi-Fi 802.11 b/g/n 2.4 GHz
- Bluetooth 2.1 EDR
- Ethernet 10-100 Mbit/s
https://support.withings.com/hc/ja/sections/6216240841105-Smart-Baby-Monitor
https://support.withings.com/hc/ja/sections/200537898-FAQ