How do I power on my beats solo 2 without the cord that came with them

I've just been given a pair of beats and Idk how to use them! There's no power button that I can see and according to the model number these are solo 2's Im also wondering how to charge them I didn't get the charger for them so tried to charge them with a connector I have that I can plug a cord into and make it a c connector please help Idk what I'm doing with these but wanting to use them badly! Thank you 😊 oh and I. Using my galaxy note 10 plus also,