RADIUS RADIUS Ne structure dynamic driver wired canal type no microphone earphones HP-NEF31 Earphones High-MFD Cost-effective HP-NEF31K (black)

High-MFD structure driver Deep mount earpiece included The vibrating membrane inside the driver unit uses a "super multilayer film" made by laminating hundreds of polyester resin films. It has higher rigidity than general PET film and achieves more brilliant sound quality reproduction. *We do not accept returns or exchanges for items other than defective items. Thank you for your understanding in advance. [Note] To improve the quality of radius products, we perform inspections, firmware updates, and periodic recharging before shipping. Therefore, products that have been temporarily opened may be mixed in, but this is an unused product and there is no problem with the quality. Thank you for your understanding.