Like to change the Device name. I bought it for my daughter with my apple ID but we cannot change the device name. Can you please help?

Change the name of your iPhone, iPad, or iPod touch

To change the name of your iPhone, iPad, or iPod touch, follow these steps:

1. On your device, go to Settings > General, then tap About.
2. Tap the first line, which shows the name of your device.
3. Rename your device, then tap Done.