Authentic product purchased from Yamada Denki Yahoo Store, with warranty. This is a new, unopened item. I am selling this because I accidentally purchased two. Purchased on October 18th of this year. A delivery note will be included. The warranty is valid until October 18th of next year. (The delivery note includes light bulbs that were purchased together, but please disregard them...m(_ _)m) No returns are accepted after purchase. Thank you for your understanding. m(__)m This is a new, unopened pair of BOSE QuietComfort Ultra Earbuds. They feature cutting-edge noise-canceling technology, providing an immersive sound experience. They are perfect for listening to music, online meetings, and various other situations. [Brand] BOSE [Model Name] QuietComfort Ultra Earbuds [Function] Noise Canceling [Condition] Unused [Color] Black Thank you. Bose QuietComfort Earbuds Chilled Lilac Brand: BOSE QuietComfort Wearing Style: Separate Left and Right, Completely Independent Headphone Type: Canal Type Color: Purple Wireless/Wired Connection: Wireless Headphone Features: Noise Canceling, Microphone, Sound Quality Adjustment, Waterproof, Splashproof, Remote Control Wireless Standard: Bluetooth IP Standard (Waterproof Standard): IPX4 Charging Port: USB Type-C Charging Time: 1.5 hours Weight (g): 17.0 g QuietComfort Ultra Earbuds QCULTRAEARBUDSBLK Black Brand: BOSE QuietComfort Wearing Style: Separate Left and Right, Completely Independent Headphone Type: Canal Type Color: Black Wireless/Wired Connection: Wireless Headphone Features: Noise Canceling, Microphone, Sound Quality Adjustment, Waterproof, Splashproof, Remote Control Wireless Standard: Bluetooth IP Standard (Waterproof Standard): IPX4 Charging Port: USB Type-C Charging Time: 1.0 hours