Features: High-quality memory foam tips provide a comfortable and secure in-ear fit. Memory foam tips offer noise isolation for an enhanced audio experience with superior bass and effective external noise reduction. Compatible with WF-1000XM4 and other wireless Bluetooth headsets; features slow-rebound foam. Noise-reducing, super soft, comfortable, and safe for extended wear, suitable for exercise. Does not interfere with charging; delivers an enhanced sound experience. Specifications: Size: S/M/L Color: Black/Gray Material: Sponge Fit for: WF-1000XM4 Earbuds S-Size: Outer Circle Diameter 11mm, Inner Mounting Hole Diameter: 3.8mm–5.5mm M-Size: Outer Circle Diameter 12mm, Inner Mounting Hole Diameter: 3.8mm–5.5mm L-Size: Outer Circle Diameter 13mm, Inner Mounting Hole Diameter: 3.8mm–5.5mm Quantity: 1 Pair Note: Earphones not included. Due to lighting effects and shooting angles, slight color variations may occur. Manual measurement may result in a 0–1cm size deviation. Package includes: 1 Pair x Earphone Earpads