The Baseus Bass BP1 NC in Cosmic Black are in-ear true wireless earbuds designed for those who prioritize deep sound and quiet environments. They feature 12mm dynamic drivers that deliver powerful super bass and 360-degree spatial audio, creating an immersive listening experience. To help you focus, the active noise cancellation reduces ambient sound by up to -43dB, while a four-microphone AI ENC system ensures your voice remains clear during calls. These earbuds connect via Bluetooth 6.0 with a range of 10 meters and include a low-latency mode of 58ms, which is useful for keeping audio in sync during videos or gaming. The build is rated IP55, meaning they are protected against dust and water splashes, making them suitable for workouts or unpredictable weather. Battery performance varies depending on your settings, offering up to 7 hours of playback per charge with noise cancelling off, extending to 41 hours when using the USB-C charging case. If you prefer to keep the noise cancellation active, you get 5.5 hours per charge and a total of 33 hours with the case. This makes the Cosmic Black model a reliable companion for long commutes or full days of use without needing a power outlet.