Name : ZQS-8212 20Wx2 Portable Wireless Karaoke Bluetooth Speaker 8.5X2 inches with FREE MICModel : ZQS-8212Material : ABS plasticWireless connectivitySupport USB/TF card AUX functionRechargeable batteryKaraoke FunctionWireless stereotwin speakerOutput power: 20wX2MIC INPUT WITH KARAOKE FUNCTIONREMOTE CONTROLAUX 3.5 MM INPUTWIRED MICROPHONEPOWER SUPPLY: DC IN 5VWith LED displaySealed woody speaker boxStylish PanelWith main volume adjustingHigh capacity lithium batteryPlay time: up to 5-6hours at 75% VolumeWireless transmission rang: Up to 10 meter.Charging time: 2-3 hours.Speaker Unit: 6.5×2 inchesPower Supply: Li batterySupport BT/FM/USB/TF/MIC/AUX RADIOwhen you have two devices,need to long press “M” to bulid the connection both.FM radio, search and record the FM frequency automatically.