Generating pairs of values from a map with values as list in javascript

I have the below map.

map = { a: [ 11, -11 ], b: [ 'hello', 10 ] }

How do I get the below output from this map?

(11,'hello)
(-11,10)

Note that the number of keys in the map is dynamic. As of now there are 2 keys. I need to get the logic to work for any number of keys and any number of elements in the list for each key. Thanks.