The Radio Shack "Slot Radio" comes with a dandy Wallplug/USB plug charger and you can plug whatever USB adapter you need. The mini USB (Motorola) size works on the Insignia, while the Mirco USB works on the newer Moto phones and SlotRadio.
BTW, the I got my Sansa SlotRadio to play my own full WAVE files instead of crappy MP3's, and it sounds great. (ironically, the wave files were recordings of WJR playing music in CQuam stereo shortly before the IBOC installation, and cancellation of the Sunday night and Sunday morning music programming), less I digress from the topic at hand.
BTW, the I got my Sansa SlotRadio to play my own full WAVE files instead of crappy MP3's, and it sounds great. (ironically, the wave files were recordings of WJR playing music in CQuam stereo shortly before the IBOC installation, and cancellation of the Sunday night and Sunday morning music programming), less I digress from the topic at hand.