niskite toys for 7 8 9 10 years old girls,christmas stocking stuffers birthday gifts for 6-15 years old girl boy,bluetooth wireless karaoke microphone, party favor for teen boys girls toys age 4-12 niskite <b>specification:</b><br><br> material: aluminium alloy <br> weight: 365g(12.87oz) <br> output power: 6w(speaker output) <br> charging voltage: dc 5v <br> charging time: 4 hours <br> sing time: up to 3-4 hours <br> battery capacity: 1800mah <br> products size: 9.45*2.95*2.36in <br> speaker frequency: 100hz-10khz <br> transmission distance: 10m(32.8ft) <br> power supply: build-in li-ion battery <br> reverb mode: echo sound reverberation <br><br> <b>package includes:</b><br><br> 1 x karaoke microphone <br> 1 x micro usb cable <br> 1 x instruction manual