Trackball Mouse JUNNUP 【NEW Model】 Bluetooth & USB Receiver 2.4GHz This is a trackball mouse that supports Bluetooth 5.0 and has 5-level DPI switching. I accidentally bought a duplicate of a similar mouse, so I'm selling one. I opened the package, but it's unused. (Purchased July 26, 2025) - Model: M1 - Connection Method: Bluetooth 5.0 - Wireless Frequency: 2.4GHz - Interface: USB (Type-A connector) - Resolution Settings: 800/1200/1600/2000/2400 DPI switchable - Size: Trackball / W96.7 x D133.8 x H48.6mm - Weight: Approximately 132.8g - Supported OS: Windows 8 or later, macOS 10.10 or later, Android OS 4.3 or later, iOS iPadOS 8.0 or later Thank you for looking.