Home karaoke wireless bluetooth small microphone mobile phone baby singing toy
--Bluetooth version5.1 Built-in battery capacity800mAh-1000mAh (inclusive)Signal-to-noise ratio≥70db Frequency response range100HZ-20KHZRated power5 Rated voltage5Dimensions21.5*78*78mm Battery life1-3h (inclusive)Radio headCapacitor Whether built-in batteryBuilt-in battery