Input: AC 100-240V 50-60HZ Built-in protection:Wall charge power supply include Over Voltage Protection,Over Current Protection,Short Circuit Protection,Input Protection,all-round guarantee of safe and normal use of power supply. Compatible with:15V AC/DC Adapter Compatible with Bumpboxx Model Ultra Plus+ BBULWALGRAF 36236636 596250511 12V 4Ah Li-ion Battery 140W Retro Boombox Bluetooth Wireless Speaker 3A Power Supply Cord Charger 【Notes】ONLY for these models listed above, WILL NOT for any OTHER models. Please make sure your device model or P/N listed here to ensure compatibility before purchase Tomatosd 15V AC/DC Adapter Compatible with Bumpboxx Model Ultra Plus+ BBULWALGRAF 36236636 596250511 12V 4Ah Li-ion Battery 140W Retro Boombox Bluetooth Wireless Speaker 3A Power Supply Cord Charger