Features: High-quality memory foam tips for a comfortable and secure in-ear fit. The memory foam tips provide excellent noise isolation, enhanced bass response, and an effective seal to block out external noise. Application: Compatible with Sony WF-1000XM4 and other wireless Bluetooth earbuds with slow-rebound foam compatibility. Designed for noise reduction, offering a soft, comfortable, and safe fit—ideal for exercise. Does not interfere with charging. Delivers an improved sound experience. Specifications: Size: S / M / L Color: Black / Gray Material: Memory foam Compatible with: Sony WF-1000XM4 earbuds S Size: Approx. outer diameter 11 mm, inner mounting hole diameter 3.8–5.5 mm M Size: Approx. outer diameter 12 mm, inner mounting hole diameter 3.8–5.5 mm L Size: Approx. outer diameter 13 mm, inner mounting hole diameter 3.8–5.5 mm Quantity: 1 pair Note: Earphones are not included. Due to variations in lighting and shooting angles, slight color or appearance differences may occur. A 0–1 cm measurement tolerance is possible due to manual measurement. Package includes: 1 pair of earphone earpads