Hi Gavin, I have the Tecsun PL-660 at work and the Tecsun PL-880 at home. The PL-660 has SW and airband which both work well, however the speaker isn't as good as the PL-880. I use the PL-880 mainly as an FM radio and it sounds amazing. Really good speaker. Downside is that it doesn't have airband, however that's fine for me. The PL-880 also has a Li-Ion battery which lasts a long time between charges, which is handy. Both are great radios and to be recommended. Just depends on how important the airband is for you? By the way I believe the PL-660 is a precursor to the PL-680 (which I havn't tried yet).