Ibrahim Electronics, Oriental Shopping Center, Ground Floor, Shop 17, Bandar, Sylhet. Micrologic ML-4030 Rechargeable Trolley Speaker. R.M.S: 100W. Speaker size: Single 12" with Tweeter. Power: Built-in 7.4V 2400mA battery, AC: 220V, charging protection device, external 9V power supply, portable lever charging mode: boot charging. Bluetooth. FM Radio. Wireless Microphone. Tune the volume and equalizer with remote control. Communication: Full multi-input capabilities with Bluetooth, Pen Drive, MMC Card. Micromax own proprietary technology - Bass with natural depth and range. Great Sound Quality. Color: Black. Warranty: 1 Year Service Warranty. Note: Product configuration may not match the carton (Printing Mistakes). Features: Wireless Bluetooth & microphone - supports wireless connection and playback with other Bluetooth devices such as mobile phones and tablets. Built-in single-channel wireless microphone reception module, supporting the use of a wireless microphone. Power - Built-in 12V (500mA) battery, 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. Built-in trolley and rechargeable - Up to 4 hours battery life from one charge and easy to carry anywhere.