WinBridge K2 30Watt Portable Karaoke Speaker

K2 30W portable wireless Karaok speaker, it support Echo, Treble, Bass, Looping, Recordking and Delete Recording, Vocal Accompaniment. It has everything you can possibly want; it's portable (battery power), tone controls, echo effects, auxiliary input, Bluetooth connectivity to a hand held microphone, built in memory plus controls for record/payback, MicroSD slot, USB port etc. Wireless microphone system is highly integrated systems with many features, Recording, FM radio, Bluetooth, Karaok Sing, Audio in/out. Technical parameters 1. Output power: 30W(THD+N=10%,f0=1KHz) 2. Charging Voltage: DC 9V, 1.2A 3. lithium battery: 7.4V 4000mAh 4. Working time:with 50% volume 5~6 hours ; 5. Charging time: 5-6hours 6. Product size: 343.5*252*136mm 7. Unit weight: 3.6KG 8. S/N ratio >=70dBa 9. Distortion:<=1% 10. Frequency response :45Hz-20KHz 11. Working temperature: -10℃~45℃ 12. Frequency response: 45Hz~20KHz 13. Sound coverage: 3000m2 14. Wireless distance: 10-25m 15. UHF frequency range 700MHz-730MHz Main features: 1. 30W power output,cover 1500m2 2. 7.4V 4000mAh lithium battery 3. Support Multiple devices connected in series 4. Bluetooth 4.2 sync,UHF wireless karaoke Sync 5. DSP sound with effective layering 6. Support TF card &USB flash drive 7. Stylish, ergonomic and comfortable design; 8. Two speakers, 5.25inch one for bass; 1.5inch for treble 9.Number keys easy to quick choose songs