Quick overview from the supplier:
Electric Toothbrush Philips HX3671/14
, Electric toothbrush Philips Sonicare for Kids with one brush head, two modes and built-in Bluetooths with a fun app that helps kids brush better and longer.
https://www.philips.co.uk/c-p/HX6311_17/sonicare-for-kids-sonic-electric-toothbrush/overview
