Item Type: Karaoke MicMaterial: Plastic, ElectronicsModel No.: K18Bluetooth Version: 5.3Connection Distance: 10M/10.9ydMemory Card: Maximum Support 128GB (not Included)Speaker Power: 5WFrequency Range: 20HZ to 20KHzCharging Time: 3.54 HoursPickup: Backpole Condenser Microphone HeadBattery Type: Built in 1200mAh Polymer Lithium Battery (included)Package List1 x Microphone1 x Charging Cable1 x Instruction Manual1MICROPHONE SPEAKER ALL IN ONE: It's a Karaoke mic and a Bluetooth speaker with awesome sound quality, with seven color ambient light mode, which makes singing and listening more ambient. 2AI INTELLIGENT VOICE: Voice intelligent song ordering, voice ordering and listening to songs, more convenient to use, joy without limit; a key to eliminate the original singing function, any song becomes accompaniment in seconds. 3FOUR VOICE CHANGE EFFECTS: Support male to female, female to male, doll voice, monster voice, interesting voice change, add more fun. 4TWO MACHINES INTERCONNECTION: New two person wireless chorus button, the family turns into a KTV in seconds, enjoy the happy time. 5WIDE COMPATIBILITY: Comprehensive support for cell phones, tablet PCs, TVs, computers and other systems, and compatible with all kinds of mainstream APP; built in 1200 mAh high capacity lithium battery, ultra long battery life, long lasting and durable.