WiFi early education machine is better, Bluetooth has distance limitation, and remote control has limitations. My cow listens to WIFI and has a matching APP. It is super convenient to control the machine remotely, even if you are not at home. There is also a voice dialogue function. If you are not at home, the baby suddenly wants to hear a story. Just send me a message and I can book it for him when I'm not at home. And this is something Bluetooth can't do.