Hello, the landlord. Room 2458, Wuhan Computer City, No.201Luo Yu Road, has an Anmai earphone store. PP and K420 should have both. Well, it's more expensive than online, but it's still cheaper. In fact, online shopping is the most convenient and the price is the most reasonable. Tmall and JD.COM sell genuine products.
It is good for the landlord to buy PP and K420 for this taste. I recommend K420 more. PP is suitable for rock and roll, more suitable for pop, vocals, musical instruments and so on than K420, and PP is not easy to play. I hope it will help the landlord.