Belkin TunePower Rechargeable Battery Pack for iPod Works with all iPod or iPod mini players with dock connectors Includes three sleeves for 10/15/20 GB iPod, 30/40 GB iPod, and iPod mini Attaches securely with custom-molded sleeves to protect your iPod Includes a DC/Firewire charging cable Features a two-cell lithium ion battery which offers cost-savings and convenience of recharging