Mini 2.4G Wireless Keyboard Trackball Keyboard for Laptop PC Portable multi-function Trackball Air Mouse Decent Design - AliExpress
Cherry G84-4420 Ultraslim Keyboard With Trackball, Black (g84-4420lubeu-2) : Target
Adesso EasyTouch Mini Trackball - keyboard - black - AKB-310UB - Keyboards - CDW.com
Amazon.com: Ergonomic Keyboard, 2 in 1 Wireless Computer Keyboard and Trackball Mouse Combo Design with Wrist Rest, Split Keyboard, USB Keyboard for Windows/Mac/Laptop/Computer/PC-Black : Electronics
Amazon.com: Perixx Periboard-706 Wireless Trackball Mini Keyboard, Build-in 0.55 Inch Trackball for Pointing Feature, Black, US English Layout (10532) : Electronics