A:AnswerIf you want to charge something, plug the u s b part in to the speaker and the c part into whatever you want to charge. If you're charging the speaker, it's vice versa
A:AnswerNot Sure About Compatibility with Alexa I'm Not A Subscriber . Best Buy with the purchase of the Charge 5 Includes a FREE 4 Month Subscription to Sirius XM FREE For 4 Months