In-ear/ear bud style headphones that are highly portable and offers enhanced sound isolation Truly wireless design is powered by Bluetooth 5.4 technology for a highly reliable connectivity Hybrid Active Noise Cancellation (ANC) offers up to 49dB of noise cancellation and effectively blocks out background noise in various environments Smart adaptive noise cancellation feature adjusts noise cancellation levels based on ambient sound, providing ideal amount of quietness in different situations 12.4mm titanized diaphragm improved by BassWave 2.0 delivers rich, detailed sound with deep bass Built-in mic improves convenience Clear Call Algorithm utilizes three built-in mics (two analog and one digital) for enhanced call clarity Long-lasting battery offers up to 44 hours of total playback time Fast Charging Support provides 11 hours of playback with just 10 minutes of charging