It's interesting to me to read so many complaints about low speaker volume. On my SP2, I have the volume typically set to 4, occasionally to around 12 if I'm in my office and the air handling is going. I have no problems hearing it. The fidelity is for crap, sure, but for that I have a pair of Jaybird BlueBuds X and an older Sony Ericsson MW600 BT pendant coupled to a nice pair of Sennheiser in-ears. Either of those work great on airplanes.