These are the Technics "EAH-AZ40" true wireless earbuds, known for their high sound quality. They feature "JustMyVoice™" technology, which delivers only your voice clearly during calls, making them ideal for telework and calls on the go. The earbuds themselves weigh approximately 5g each, and the charging case is about 30g, making them very lightweight and easy to carry without stress, with a design that puts less strain on the ears. Product Condition: * Used for approximately 1 year * Sound quality is fine. The microphone may pick up surrounding sounds if the JustMyVoice feature doesn't work properly due to settings/compatibility with the Bluetooth-connected computer. This shouldn't be an issue for those who don't use the microphone for calls or use their computer's microphone instead. * No noticeable scratches or stains (※Please check the photos) * Alcohol-disinfected Included Accessories: * Charging case, ear tips, USB-C charging cable, original box Notes: * Please refrain from purchasing if you are sensitive to used items.