UpBright 5V AC/DC Adapter Compatible with MOYLEAF K500 MOY-2 HHCC-A9 MOY-1 Karaoke Machine Kids Bluetooth PA Party System Multifunctional Portable Speaker USB-C Power Supply Cord Battery Charger PSU - MOYLEAF K500 MOY-2 Power Supply

• World Wide Input Voltage 100-240VAC 50/60Hz OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) Tested Units. In Great Working Condition. UpBright 30 days Refund. 24 Months Exchange. UpBright New Global 5V AC / DC Adapter Compatible with MOYLEAF Model K500 MOY-2 MOY2 7.4V/4000mAh DC7.4V 4.0Ah 7.4 Volt 4000 mAh 7.4 Volts 4.0 Ah 7.4VDC 4Ah Lithium Ion Li-ion Battery Pack 40W Karaoke Machine Adults Kids Bluetooth PA Party System Multifunctional Portable Speaker DC5V 5.0V 5VDC 5.0VDC 5 V 5.0 VDC USB A to USB-C USB Type C USBC Charging Port Class 2 Switching Power Supply Cord Cable PS Wall Home Battery Charger Mains PSU Compatible with: MOYLEAF Model HHCC-A9 HHCCA9 MOY-1 MOY1 Karaoke Machine Adults Kids Bluetooth PA Party System Portable Speaker Power Supply. ⚠️!!!Tips: Rechargeable batteries don't last forever, the average battery last 1 to 3 years. If the battery is old/dead, it will not accept a charge. But not charger's problem. If you're not sure whether battery or charger is dead or not. You must have a volt meter in order to tell whether or not a charger is working.