Have posted before, and just got alerted it's back at that price from the camel (with an ever so slightly better dollar this time).
Cheaper than buying addon switches if you need a couple more. As before…
A handy (although pricey) addition for users of LIFX and other connected items, the Logitech Pop Home Switch Starter Pack is currently 40% off at Amazon. Includes the bridge and 2 switches.
Note that the bridge is universal voltage but does have US pins so a pin adapter is required. Each switch can be programmed with 3 commands, on a single press, double press and long press and battery life is said to be about 5 years.
This is the older non Homekit compatible version that includes 2x buttons. The Logitech site has been updated to reflect the new POP Smart Button product which is Homekit compatible but only includes 1x button.
To be home kit compatible would you just need the new base? Ie buttons can transfer across?