This product has solved the inconvenience of music lovers perfectly.it includes nearly all the functions of previous series, microphone singing devices. Its easy operation enables you to singing devices. Its easy operation enables you to sing anytime anywhere. It is with maximum 15W output and the mixing sound of microphone is much more stronger, which can satisfy the music lovers very muchReal photos of Lewinner customers Product description: 1.Portable Karaoke MicrophonesThe most convenient Party Supplies, whatever home party, travel and camping, perfect to show your voice. 2.All our Karaokes are Official Authentic Products with High Quality. 3. Remarkably KTV Echo EffectWe used the highest quality chipset with two channel stereo headphones, it produces a more stunning KTV live-sound and more clear music rhythm with echo reverberation. 4.Compatible with most smart bluetooth devices,including all Android and IOS smartphones. 5.MultiProtect Safety BatteryOur MultiProtect Safety Battery could keep you and your devices safely.4000mAh battery gives you up to 6-7hour fun, Repeatedly charged it without replacing batteries.Specifications VersionBluetooth 4.1 Wirele working Range: 10M(without obstacles) Speaker Specifications57mm 4 15W Support Protocol:A2DP, AVRCP, HFP, HSP Frequency Response100Hz-12KHz Power SupplyBuilt-in 3.7V Lithium Battery 4000mAh7.4wH Charging TimeAbout 5H Play time:10-12H Sing time:4-8H Standby time:98h Adapter:Micro USB port,DC5V Size284mm*66mm*55mm Colorsblack,gold,red,pink Support: Usb Karaoke Bluetooth Play music Packing list Lewinner L-698 15W microphone speaker * 1 Audio cable * 1 Instruction manual * 1 Micro usb charge cable * 1 Protective case Mystery gift * 1