Kruger&Matz Music Box Wireless Speaker

Power: 10 WImpedance: 4 OhmS / N ratio: 50 dBSpeaker: 8 "+1"FM frequency: 87.50 - 108.00 MHzBluetooth: 4.1Supported formats: MP3TWS function (connect two speakers together)Inputs / outputs:USB 2.0 portKaraoke Mic Input (6.3 mm jack)AUX input (Jack 3.5 mm)Micro USB socketPower supply: 5V / 1ABattery: 3.7V / 1200mAhDimensions: 330 x 220 x 180 mmWeight: 1410 g