■ About the Product Tested and working. Color: Black All original box and accessories included. Stored in a dark place. I liked the noise-canceling function, sound quality, and equalizer functions, but I didn't use them as much as I thought I would, so I've decided to sell them. I have disinfected everything with alcohol, etc., but please understand that this is a used item before purchasing. ■ Regarding Purchase ・Please refrain from purchasing if you are sensitive to used items. 【High Sound Quality】 Supports Hi-Res Audio for clear sound quality. You can enjoy music and calls in high quality. 【Noise Canceling】 With the customizable noise-canceling function, you can effectively block out surrounding sounds, making it ideal when you want to concentrate. 【Long-lasting Use】 The battery lasts for 50 hours, so you can use it for a long time without worry. You can enjoy it without worrying about charging. - Brand: Anker - Model Name: Space A40 - Noise Canceling: Customizable Noise Canceling 2.0 - Battery Life: 50 hours - Audio Quality: Hi-Res Audio - Size: Ultra-compact Thank you for viewing.