The Noise Air Buds Pro 4 feature an in-ear fit and operate as fully true wireless earbuds, meaning there are no cables or neckbands involved. They carry an IPX5 rating, making them resistant to sweat — a practical consideration for physical activity. The earbuds include stereo speakers but come without wingtips, RGB lighting, a UV light, or any built-in display.
The Noise Air Buds Pro 4 use a 10 mm driver unit and cover a frequency range of 20 Hz to 20,000 Hz. They support both active noise cancellation and passive noise reduction, giving users two layers of isolation from surrounding sound. Spatial audio is also supported, though the earbuds do not include Dolby Atmos, Dirac Virtuo, or a neodymium magnet.
The Noise Air Buds Pro 4 offer 7 hours of battery life per charge, which drops to 5.5 hours when active noise cancellation is enabled. Combined with the charging case, the total available playback time extends to 43 hours. The earbuds fully recharge in 1 hour and include a battery level indicator so users can monitor remaining power. The battery is rechargeable, though wireless charging and solar power are not supported.
The Noise Air Buds Pro 4 connect wirelessly via Bluetooth 5.3 with a maximum range of 10 m and an audio latency of 40 ms. Fast pairing is supported, and the charging case uses USB Type-C. On the codec side, the earbuds do not support LDAC, LDHC, AAC, Auracast, Bluetooth LE Audio, or any variant of the aptX family, including aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, and aptX Voice. NFC pairing is also not available.
The Noise Air Buds Pro 4 include an ambient sound mode, a mute function, and voice prompts, and they can be used as a headset with controls placed directly on the device. Multipoint connectivity supports up to two devices simultaneously, and fast charging is available for quicker power top-ups. A travel bag is included in the box, and the earbuds come with a 1-year warranty. Features such as in/on-ear detection, a find device function, notification reading, an in-line control panel, a body temperature sensor, and a camera remote shutter are not present.
The Noise Air Buds Pro 4 are equipped with a quad-microphone setup that includes noise-canceling capability, helping to reduce unwanted background sound during calls and voice interactions.