Thank you for viewing! The Game Boy Advance SP and the original Nintendo DS had a drawback: they only had a proprietary headphone jack, making it impossible to use commercially available earphones. Nowadays, it's even more difficult to obtain the dedicated earphones... But with this, you can use commercially available earphones! This item is difficult to obtain now!! ※ This is a bulk product from overseas. ※ This is not a licensed Nintendo product. Length: 10cm GBA SP 3.5mm Earphone Adapter