Contixo KB 300 Kids Bluetooth Wireless Headphones 85db Volume Limiting, Microphone, MicroSD Card Player, Wired 3.5mm AUX Cable, Music Streaming,.

Built-in Volume Limiting Safe for Kids: Volume limited to 85d B 3.0 Bluetooth wireless signal transmission Call acceptance function Wired/wireless audio signal transmission Built-in player for audio files from Mircro SD card Built-in FM Radio Battery operation time up to 10 hours Radius of operation up to 10m (30ft) Microphone Colorfil LED Lights