For OnePlus 9R Four-leaf Clasp Embossed Buckle Mobile Phone Protection Leather Case with Lanyard & Card Slot & Wallet & Bracket Function(Magenta) Filter-RS485 / RS232 Series it can work with Samsung

it can work with Samsung Galaxy S8/S8+/Note8/S9/S9+

The wire diameter is adjustable

High quality speaker ringer buzzer for Xiaomi Mi 6

Dimensions: 40x25mm / 1

full / half duplex automatic adjustment

For OnePlus 9R Four-leaf Clasp Embossed Buckle Mobile Phone Protection Leather Case with Lanyard & Card Slot & Wallet & Bracket Function(Magenta) Filter-RS485 / RS232 Series it can work with Samsung1. Concise: Four leaf clover embossing and buckles are noble and generous. 2. Function: With card slot, wallet, easy to use, the bracket function is designed for easy viewing. 3. Convenience: All buttons and ports can be accessed, charged, and connected to the headphone cable without removing the phone case. 4. Portable: The phone is light and thin, and it is more convenient to carry with a lanyard. 5. Durable: PU+TPU material with good performance