Bose Soundsport Bose Soundsport Refurbished.Sound quality is very good for true wireless workout earbuds, but it may not be worth the drawback of fickle connection stability. I have been trying to chate with Bose online for about an hour and haven't gotten anywhere. Most serial numbers can be found on the back or bottom of the product, and they’re typically near a barcode. Place the earbuds in the charging case and turn them off and wait for half a minute. Find product info, customer service help, and contact information from Bose Support. Why is my left Bose earbud not working? Re: Wireless SoundSport left ear not working If you notice the left earbud turning off, try pressing the Bluetooth button to wake it.When I’m in the office they work but it is when I run they mess up.