Inhouse product
Micrologic ML-4070 BTT Rechargeble Bluetooth Trolly Speaker
Power - Built-in 12 voltage ( 500mA) battery, AC AC: 220V, charging protection device, external 9v power supply.
Audio input - DVD/AUX external audio input, USB/MMC card input, wired microphone input.
Microphone interface - support external wired microphone or electric guitar, and have independent volume adjustment
Warranty : 1 Year Service Warranty Guaranteed high quality and reliability with hassle-free parts and labor warranty for one years in any Micrologic Local seller center.