iShoppingdeals - White Mini Stereo Speaker for Sony Walkman NWZ-S544 NWZ-S545 This Bundle Includes 4 Items (Non OEM): USB Auto Charger, USB AC Charger, White Mini Speaker, and Smart Headphone Wrap USB Charging Interface Speaker - Works With Any Device w/ Audio Out, Rechargeable Li-ion Batteries (Built-In Audio Cable) Pair the Speaker With One of Charger, Less Than An Hour, and Play Music Up to 3 Hours USB Charger: 100V - 240V (U.S. & World Standard), 5V 1000mA Compatible With Sony Walkman NWZ-S544 NWZ-S545 (MP3 Player Not Included)