Bluetooth headphones HAMA Teens Guard, Children's, Green, 184112

Bluetooth headphones that are gentle on sensitive children's ears by limiting sound pressure to a maximum of 85 dB
Two microphones: built into the headphones and an additional one that can be attached
Flexible, adjustable, sturdy headband that returns to its shape even when bent or twisted
The headband can be adjusted perfectly to the size of the child's head.
Soft ear cushions fit comfortably even after long use
Supports Siri and Google Assistant voice assistants
Ability to connect the headphones to multiple Bluetooth devices simultaneously

Music time: up to 25 hours with fully charged headphones
Talk time: up to 23 hours with fully charged headphones
Volume control directly on the headphones
Playing audio via Bluetooth
Control functions: play/pause music, answer/reject/end calls/redial last number
Voice information: e.g. battery charge message

Bluetooth class: 2
Bluetooth version: 5.1
Operating frequency: 2402-2480MHz
Frequency response (headphones): 20 Hz - 20 kHz
Frequency band (microphone): 100 Hz - 10 kHz
Impedance (headphones): 32 Ω
Impedance (microphone): 2 kΩ
Range: 10 m
Sensitivity (headphones): 85 dB +/- 3 dB
Sensitivity (microphone): -38 dB ± 3 dB