Children's Early Education Karaoke Wireless Bluetooth Microphone Phono Amplifier Children's Microphone
--Built-in battery capacity1000mAh-1200mAh (inclusive) Signal-to-noise ratio≥100dBFrequency response range100HZ-20KHZ Rated power5Rated voltage5 Battery life3-6h (inclusive)Packing listInstruction manual Charging cable Radio headCapacitorIs it built-in batteryBuilt-in battery Shell processElectroplating Bluetooth microphone