The Bose QuietComfort Ultra Earbuds deliver world-class active noise cancellation in a premium wireless design. Featuring breakthrough Bose Immersive Audio technology, these earbuds create spatialized sound that places you at the center of your music, while CustomTune technology analyzes your ear's unique shape to optimize audio playback and noise cancellation specifically for you.

With industry-leading ANC capable of reducing ambient noise by up to 90%, multiple listening modes including Quiet Mode for full isolation and Aware Mode with ActiveSense for environmental awareness, and Bluetooth 5.3 connectivity with multipoint support to connect two devices simultaneously. The earbuds feature an ergonomic design with nine combinations of silicone eartips and stability bands for a secure, comfortable fit, along with IPX4 water resistance for protection against sweat and splashing water.

Advanced call quality is delivered through SpeechClarity technology with AI-based noise suppression and noise-rejecting microphones that filter out background sounds and wind. The wireless charging case provides up to 6 hours of battery life per charge with three additional charges stored in the case, while a quick 20-minute charge delivers 2 hours of playback. Premium features include Snapdragon Sound certification with aptX Adaptive high-resolution audio codec, adjustable 3-band EQ in the Bose Music app, touch-sensitive controls for playback and volume, and Cinema Mode using TrueSpatial technology for an immersive theatre-like listening experience. Each earbud weighs just 7.1 grams with dimensions of 3.0cm H × 1.24cm W × 2.49cm D.