○ Usage period: Approximately 2 months ○ All accessories are included. ○ The headphone plug terminals are 2.5mm, 3.5mm, and 4.4mm. ○ Cable can be replaced. ○ Regarding the warranty, we will not include the store warranty card, so only the manufacturer's warranty applies. Please be aware. ○ We do not accept price reductions. Thank you for your understanding.