4XEM's USB Sync and Charge Cable connects your iPod Shuffle to the USB port of any Windows or Mac computer for fast battery charging and music/data syncing. Combine it with 4XEM's USB Wall Charger (4XAPPLECHARGER) and charge your Shuffle using any wall outlet. Connectors: USB A Male to Mini-phone Male Stereo Audio. Problem it solves: Makes a perfect high quality backup or replacement charge and sync cable for your Apple iPod Shuffle. Small and light weight, it's convenient to take anywhere. 4XEM gear is respected industry wide for its high performance, premium quality and durability.