RGB LED Lights & Hearing Protection: Give RGB light to the music/phone call with the incredible bluetooth kids headphones. Just press and hold for 2 seconds the """" button to turn on the lights, which pulse to the rhythm of the songs. Let your child become a shining star! Built in volume-limiting circuitry keeps the sound below 94dB to protect your child's hearing. Bluetooth 5.0 Connection& Built-In HD Microphone: No more worries about the tangled wired headphones. VuyKoo cat ear kids wireless headphones adopts the latest Bluetooth 5.0 to making connections more stable. Play, pause, next/previous song, answer, and end phone calls with a touch of button. The built-in HD microphone of kids bluetooth headphones allows you to make calls and recording sound easily.