So yeah, iClever upgraded > Amazon
I always keep one of these in my bag for those just in case moments. Never used it on Bluetooth though I just plug it into via USB.
Folding Keyboard, iClever BK08 Bluetooth Keyboard with Sensitive Touchpad (Sync Up to 3 Devices), Pocket-Sized Tri-Folded Fodable Keyboard for iPad Mac iPhone Android Windows iOS, Silver https://www.amazon.com/dp/B07ZRNJ4DX/ref=cm_sw_r_cp_api_glt_fabc_3W9TW9335ATEW2FA3QMT