KC08VL-NCBT Bluetooth Wireless Active Noise Canceling Headphones is easy to operate, specially designed for kids. The stable wireless connection provides genuine freedom, no matter how big the movement your little ones make while learning on-line, making voice call, chatting over the phone, listening to music or stories, in a distance as far as 10 meters. KC08VL-NCBT is recognized because of its sophisticated active noise canceling function that significantly reduces the surrounding noise up to 90% creating a quiet environment. With Sparrow Kids’ specialized volume-controlled technology, it limits the volume at 85dB maximum for kids hearing safe. It is compatible with Smartphones, tablets, computers, Mac and all audios. It also incorporates a 3.5mm jack for wired or passive operation with the detachable cable with in-line microphone provided.