I purchased a Grade A used item from e-earphone in September 2023. As shown in the images, there are two scratches on the right earphone. Please check the close-up image of the right earphone. I tried playing music for 3 hours using LDAC, and the battery level was about 20% after approximately 3 hours. I think it should play for a reasonable amount of time with AAC. According to the Joshin website, the continuous playback time for a new unit using LDAC is 4.5 hours. On average, I used them 2-3 times a week, for about 1-2 hours each time. The instruction manual is not included, but all other accessories are present. I mainly used ear tips other than the included ones, but I have cleaned the ones I used with alcohol. The housings have also been cleaned. If you don't need the outer box, I will deduct 150 yen for shipping. Please message me before purchasing. I am also listing this item elsewhere, so please forgive me if it sells out. Sealed Dynamic Stereo In-Ear Headphones EAH-AZ60-K Black Brand: Technics Wearing Style: Separate Left and Right, Completely Independent Headphone Type: Canal Type Color: Black Wireless/Wired Connection: Wireless Headphone Features: Noise Canceling, Hi-Res, Microphone, External Sound Input, Sound Quality Adjustment, Waterproof, Splashproof, Remote Control Wireless Standard: Bluetooth Wireless Function: Multi-pairing Bluetooth Codec: LDAC, AAC, SBC IP Rating (Waterproof Rating): IPX4 Drive System: Dynamic Type Driver Size (mm): 8.0 mm Charging Port: USB Type-C Charging Time: 2.0 hours Weight (g): 14.0 g