FX-H012 Children’s Safe Head Phones custom wireless headphones

Bluetooth Standard: V5.1
Function: Bluetooth/plug-in mode/card insertion mode/FM mode
Headphone Form Factor: Over ear
Wireless Delay Time: 31-40 ms
Speaker Unit: Φ 40mm*2, 32 Ω
Item: Kid bluetooth headphone
Charging Time: 2h
Play Time: 12h (turn off the light)