Bluetooth Pairing

I feel exactly the same! I have a Juice Jumbo bluetooth speaker which connects with my i-phone and android tablet no problem. My old MP3 doesn’t have bluetooth so I treated myself to a SanDisk Clip Sport but none of my other blutooth devices see it let alone pair/connect to it. I have done the recent update but this has made no difference. I can’t decide whether to return it as faulty and get a refund or a replacement. What do people suggest?