Sandisk Clip Sport Plus not pairing with Powerbeats Pro

I bought a clip sport plus to use with my new Powerbeats Pro wireless headphones. The Powerbeats work fine with my phone, and the clip sport works fine with my JBL Extreme (speaker), but they don’t work together. The clip sport recognizes the Powerbeats, but they do not pair up. Don’t know which is to blame, but I am disappointed and about to send both of them back. Any suggestions?