A:Answer Thanks for reaching out. Please try to reset your speaker by pressing and holding the Volume+ & Play/pause buttons down at the same time for more than 5 seconds. The Pulse 4 will turn off, indicating that you did a successful reset. Once done, please make sure that your unit has a sufficient charge and connect it to a different source (phone, tablet, computer) to check if it will fix your problem. If the issue persists, please reach out to our customer support to check your options here: https://bit.ly/3pC8WOU