Reduces effectively noises disturbing your sleep such as snoring or city noise. Premium quality Active Noise Cancelling (ANC) technology combined with passive noise reduction. Designed for sleeping, no masking sound, no Bluetooth connectivity (no music listening), no electromagnetic field (EMF) radiation. World’s smallest ANC earbuds – so small that they are also suitable for side sleepers. Comes with soft and comfortable eartips in different sizes (XS, S, M, L). The size S ear tip comes pre-installed on the earbuds. Long battery life, 28h/ single charge.