Does anyone have any experience with the "UZOPI mount holder"? It had a high rating on Amazon so I bought it.USER MANUAL. 4. Then, BT4842B is paired with two Bluetooth headphones or two. Bluetooth speakers simultaneously. 4.3 DISCONNECT THE CURRENT CONNECTION. Buy UZOPI Bike Lights Set, USB Rechargeable, Super Bright Front Headlight and Rear manufacturer service options may not be available; product manuals, 11 results from 6 products for " Uzopi Bluetooth Speaker Manual". Verified Manufacturer. Ready to Order. Min. Order. GO. FOB Price (USD).