Ultra-Small Battery-Powered In-Ear Hearing Aid * Set Contents Main unit, button battery (LR41) x 2, ear tips (large, medium, small, extra small) x 1 each * Materials ABS resin, silicone rubber, etc. * Size (approx.) Width 1.8 x Depth 1.7 x Height 1.5 cm Retail Price: 3,860 yen ■ Easy setting, just turn the dial ■ Can be worn on both ears (Universal for left and right) ■ Includes 4 sizes of ear tips! Can be used to fit your own ears! Operation confirmed Due to long-term storage, there is some aging deterioration on the case, etc., but it has been stored in a plastic bag, so it is in relatively clean condition. Please check the condition of the product in the images. ♡ Neither I nor my housemate smoke. ♡ We do not have any pets. ♡ Fast shipping! We ship every day! If it is not possible to ship on the same day, it will be shipped the next day. ♡ Safe and secure [anonymous shipping]! Shipping is planned via Japan Post's Yu-Packet Post. We are committed to making transactions pleasant for both parties, so thank you for your cooperation!