Logitech has introduced its new Rechargeable Speaker S315i for iPod and iPhone and its Portable Speaker S125i for iPod. The S315i features a built-in rechargeable battery good for up to 20 hours in power-saving mode or 10 hours of normal operation, full-range drivers, a slim, 1.8-inch deep body, an auxiliary input, and an integrated Universal Dock. It is expected to ship later this month for $130. The Portable Speaker S125i features a compact design, an integrated dock, the ability to run on AC power or for up to 10 hours on four AA batteries, an auxiliary input, and push-button bass boost. It is also expected to ship later this month, and is priced at $70.