And lightweight , too . It'll play for 20 hours on two AA batteries !   Cool ! The sound is great . These earphones are awesome !   And they're really safe . They'll protect your ear from sound damage .   You certainly need that . You always pump the volume up way too high .   I know . And you can also hear outside noises while you listen to music .   You're right ! So I can listen to music while riding my motorbike ! 