I recently developed a high end wireless ErgoDox keyboard [1] though I'm working on a more affordable version that will be announced in March/April. It will be around $200 with all the components (some minor assembly required). If you would like to be notified, please subscribe to my mailing list [2] for "ErgoDox Wireless Lite". If you are interested in details, you can also reach me via email (see profile).

[1] https://www.slicemk.com/pages/ergodox-wireless

[2] https://xudongz.us17.list-manage.com/subscribe?u=2e46b2d0347...