The portable bluetooth speaker and 2 wireless microphones are equipped with high-performance audio drivers and advanced digital signal processors to make the sound clearer and bring you a perfect singing experience.With Bluetooth 5.0, you can also connect the karaoke machine to your phone/tablet to play music from any music app. At the same time, one-click to remove/restore Bluetooth music vocals, and sing as much as you want.Built-in 1800mAh rechargeable battery ensures 4 hours of fun. Charge faster and use longer.Equipped with a 20-core large speaker with 13W high power, the volume is larger, the sound quality is more three-dimensional, and the bass is more vigorous.Multi-mode applicable: Bluetooth, plug-in card, headset.It makes a cool birthday or holiday gift for kids, friends or family.Color: Blue, Pink, White(optional)Weight: 700gBluetooth Speaker Parameters:Bluetooth Version: Bluetooth Version 5.0Working Frequency: 2.4Ghz-2.4835GHZSpeaker Impedance and Power: 45W/57mm/ external magnetic speakerBuilt-in Lithium Battery/Battery capacity: 18650/1800mAhStandby Current: 100MAPlaying Time: about 4 hoursCharging Voltage and Current: DC5V/1000maSupply Voltage: 3.7VFrequency Range: 20Hz-20KHzCharging Interface: Type-c USBSupport: TF Card (64GB and below)/AUXSize: 65 x 90 x 75mmBluetooth Microphone Parameters:Battery: 14500 Lithium Battery (500mAh)Charging Port: Type-cBluetooth Version: 5.0VWorking Current (A): 20~30mAhShutdown Current (uA): 4UACharging/Input Voltage (V): 4.5V5.5VCharging Current (mA): 400mAhBattery Specification (V): 3.7VWorking Voltage (V): 3.4V-4.2VSize: 136 x 37.5 x 38mmPackage List: 1 x Bluetooth Speaker2 x Portable Mic