HAMA Kids Guard headphones, 184106

Headphones with decibel limiter and freedom of movement for children
Protection of children's ears by limiting the sound pressure to max. 85 dB
Adjustable headband
The flexible headband is designed for use by children, returns to its shape even after bending or twisting
Detachable audio cable for safety
The built-in microphone makes the headphones suitable for homeschooling children
The soft earcups fit comfortably even after long periods of listening
Gold-plated connectors with low contact resistance, for better signal quality
They support Siri and Google Assistant voice assistants
Control of basic functions via smartphone