UPGRADE - Experience a revolution in sound performance by greatly enhancing your listening experience. Upgrade your headphones with slow rebound memory foam ear tips. One pair is guaranteed to last at least 4 weeks. BETTER SOUND - Foam earbud tips will take listening to the next level with deeper bass and richer sound. Hear more of what you want. Clear, crisp sound for a more immersive experience. COMFORTABLE - Reduce ear fatigue with our earbud foam replacement tips. Enjoy maximum comfort that's perfect for all day wear. Developed for prolonged periods of listening. ISOLATION - Memory foam earbuds tips create a perfect seal in the ear blocking out ambient noise. Our unique foam formula makes our tips expand at the perfect rate. Experience exceptional sound isolation and superior audio quality with Sonicfoam memory foam earbud tips. Scientifically engineered with precision, Sonicfoam memory foam buds expand slowly upon insertion into the ear. The result? A perfect seal that locks in the immersive audio experience you've been longing for. Each pair is guaranteed to last at least 4 weeks. Find your fit, choose a model and size: Step 1: Find the right SF Model Each SF model has a different inner core size to fit on different headphones. Select an SF model, then view the compatibility list on each SF model to see if your headphone and charging case are compatible with Sonicfoam tips. Step 2: Choose Your In-Ear Size Small, Medium, or Large. Experience The Benefits of Sonicfoam: Enhanced Audio Clarity at Lower Volumes Exceptional Noise Reduction Amplified Bass Response Immersive Sound Quality Secure In-Ear Fit Minimized Ear Strain Elevate your audio to a whole new level with Sonicfoam.