Harman Multimedia launched its new JBL On Tour and JBL On Stage speaker products at Apple Expo yesterday.

JBL On Tour works with all digital-music players, while JBL On Stage has been designed for iPods and iPod minis.

JBL On Tour is a set of portable palm-sized speakers powered by four AAA batteries. It works with any device equipped with a headphone socket. The batteries provide 6-watts of power and offer 24-hours of listening time.

Like the Altec Lansing series of speakers, JBL On Stage is a powered device that will recharge the iPod while outputting sound through its 12-watt speakers.