4 in 1 Karaoke MicrophonePortable hand-held wireless microphones can be used as microphone, Bluetooth speaker, loudspeaker, recorder. Mini home KTV for music playing and singing at any time. Quality Audio Sound and High compatibilityProfessional audio processor and tuning system, three layers high destiny noise reduction, creating a stunning KTV live-sound environment and wonderful echo reverberation. Two Way Connection3.5mm audio jack and Bluetooth connection, the wireless karaoke microphones can connect with all Bluetooth devices including Android iOS smart-phones, PC, laptops and APP such as YOUTUBE etc. Bluetooth connection has a great distance of 10m without obstacle. Long Palying TimeBuilt-in 2400mAh rechargeable Lithium-ion battery, this Wireless Bluetooth Karaoke Microphone can last more than 5-6 hours after a fully charge. Great Gifts A unique gift for children and adults and an ideal gift for Christmas, celebrations and parties. Specifications: Output Power: 5W Product Weight: 385G Power Supply: MA Polymer Battery Capacity: 2400mAh Charging Voltage: DC 5V/1A Frequency Range: 100hz-10khz Reverberation Mode: Echo Effect TF Card: 32GB MAX (Not Included) Maximum Sound Pressure Level: >115dB 1KHz Thd