Why choose AOCI Portable Wireless Microphone Karaoke? Unique International Patent Owners We have our own Unique International patent of our portable wireless microphone karaoke, And all our karaoke are official authentic products with high quality. Portable Microphones Karaoke The most convenient party supplies, whatever home party, travel and camping, perfect to show your voice. Remarkably KTV Echo Effect We 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. MultiProtect Safety Battery Our multiprotect safety battery could keep you and your devices safely with surge protection, short circuit prevention and more advanced safety features.Specification: Material: Aluminum alloy Weight: 500g(17.64oz) , Output Power: 5WX2(RMS) Charging Voltage: DC 5V 500mA Charging Time: 2-4hours Sing Time: Up to 4-8 hours Products Size: 100*80*240mm Speaker Frequency: 20Hz-20KHz Wireless Frequency:2.40GHz~2.48GHz Transmission Distance: 10m(32.8ft) Power Supply: build-in Li-ion battery Maximum sound pressure level:>115db 1KHz THDBattery Capacity: 2200mAh
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