Recommendations needed for physical telephone keypad for iphone

Hi Folks,

I get very frustrated using the on screen keypad on my iphone so i wanted to ask the applevis community for your recommendations on which external keypad i should buy for my iphone.

If you can recommend the make and approx cost of keypade you like, that would be a huge help to me.

Some of the questions i have are as follows:

1. do u prefer a blue tooth device or one that requires a lightning or usbc cable connector?

2. does the model you like have a physical on/off switch & if not how do you turn it on & off?

3. does your physical keyboard have a calculator layout or telephone keypad layout? i prefer a telephone keypad layout.

4. where did you buy it & approx how much did you pay?

thank you for your recommendations & time on this!

Cordially,
Talkie