About this item ANC & ENC Noise Cancelling Technology: These noise cancelling earbuds feature advanced ANC technology, which uses a microphone to pick up external noise and generate reverse waves to cancel it out. This feature effectively reduces ambient noise and provides an immersive listening experience. Additionally, the ENC chip filters out background noise during calls, providing clearer and crisper communication. HiFi Stereo Sound & 5 EQ modes: These wireless headphones adopt a 13mm graphene driver and a triple-layer composite membrane, offering powerful bass (up to 50Hz), impressive treble (up to 5 kHz), and mid-range. The earbuds also provide five adjustable equalization modes (Standard, Classic, Jazz, Rock, Pop), allowing you to tailor the sound to different music styles. More Practical Functions: The charging box provides additional functions beyond charging. You can locate your headset, set a timer, and customize the display. Moreover, the charging box allows brightness adj