Samsung Galaxy Buds 4 Pro feature an ergonomic canal-type design with a metal blade stem construction, IP57 dust and water resistance, and an earbud weight of 5.1 grams. Sound is delivered via an enhanced 2-way speaker system with dedicated woofers and tweeters, supporting 24-bit/96kHz Hi-Res audio playback through the Samsung Seamless Codec (SSC). Equipped with six microphones and Adaptive Active Noise Cancellation, the earbuds automatically adjust sound profiles using Adaptive EQ, Voice Detect, and Siren Detect functions. Operating on Bluetooth 6.1 with head gesture controls, the 61mAh earbud batteries offer up to 7 hours of playback (6 hours with ANC enabled), extended up to 30 total hours via the 530mAh USB-C and wireless charging case.