Here’s a useful blog-style post covering the , with a focus on the manual, setup, and common troubleshooting. Thomson Bluetooth Alarm Clock Radio (BTC-2138): Manual, Setup, and Tips You Won’t Find in the Box If you’ve just picked up a Thomson BTC-2138 – or found one without the original manual – you’re in the right place. This compact Bluetooth alarm clock radio does more than wake you up: it streams music, charges your phone via USB, and offers dual alarms. But the printed manual? Tiny print and not very helpful.