Suitable for KTV singing, party singing, family singing, travel singing, car audio, instrument recording, interviews and live performances. Signal to noise ratio: ≥85dB Frequency response range: 150～20KHZ Audio source interface: 3.5mm stereo headphone plug Built-in 1200MA lithium battery, charging is very convenient Charging time: 3～5 hours Play time: 3-5 hours with full charge and intermediate volume Power adapter requirements: input voltage: 220V output voltage: 5V current 1A/2A Product size: 54*54*39MM Single Weight: 550g Intelligent noise reduction chip. Intelligent noise reduction, beautifying sound, Ktv level experience.Save expensive ktv consumption.imulated effective ktv level experience. Beautiful and stylish appearance, Fine surface treatment, full of attractive metal texture, improve confidence in the hand, aluminum-magnesium alloy, comfortable feel. Through bluetooth, this microphone be easily paired to Android/iPhone/iPad/PC or any smartphone.And it also supports to be connected with a bigger speaker: Use the AUX cable to connect your bluetooth speaker, and pair the speaker with your phone through bluetooth, then choose songs you like to play and sing, and your voice will come out from the bigger speaker. Perfect Gifts for kids and Adults: Karaoke microphone, a unique gift for children and adults and an ideal gift for Christmas, celebrations and parties, enjoy music time with your family and friends anywhere anytime.