2.8cm elastic material design, ear protection, will not damage the eardrum, safe and reliable. Configure two soft heads, easy to clean, easy to replace. Stylish and easy to use, home travel is essential. Using a AAA battery, start by vibrating the earwax, then inhale the loose earwax and enjoy the clear, noisy world. (the product does not contain a battery) 1. Material: PP 2. Size: about 13*2.8cm/5.12*1.10in (due to manual measurement, there may be slight errors) Advantage: Easy to remove earwax, clean the ears effectively. Soft, comfortable, safe and elastic material, do not damage the eardrum, protect the ears Easy to clean and replace two soft heads. Suitable for children and adults. What is the difference between ... Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.