You will see eBay listings for "Patched Cambridge BT100." These are scams. A true hardware patch requires recapping the power management IC. Without that, any BT100 will die again within six months. Do not pay over $50 for a used unit.
: A robust long-range alternative available on Amazon that supports modern codecs like aptX Lossless and LDAC.
: Features a high-quality internal DAC and external antenna for superior range compared to the tiny BT100 dongle. 1Mii B06Pro+