Item Type: Microphone Bluetooth SpeakerMaterial: Plastic, Electronic MaterialSpeaker Model: V8Speaker Bluetooth Version: 5.0Speaker Output Power: 10WSpeaker Transmission Distance: 10M / 32.8ftSpeaker Frequency Range: 20Hz-20KHzSpeaker Operating Voltage: 3.7VMemory Card: Support up to 128GB Memory Card (not included)Speaker: 66mm 4 ohm 10 watt speakerMicrophone: 2.4G Wireless TransmissionMicrophone Operating Voltage: 3.7VBattery Type: Speaker built in 1800mAh x 1, Microphone built in 400mAh x 1 Polymer Lithium Battery (included)Package List1 x Bluetooth Speaker1 x Microphone1 x Charging Cable1[Subwoofer Stereo]: The speaker support 360 degree surround sound, 2.5 inch speakers with large diaphragm, the treble is magnificent and transparent, the midrange is clear and dynamic, and the bass is deep and powerful. 2[Built in Reverberation]: The karaoke machine has KTV grade surround sound, the wireless microphone comes with five karaoke sound effects to make singing more fun. 3[RGB Light]: The speaker has 9 kinds of 16.8 million colors with RGB light switching, artistic LED light exudes a fashionable and cool ambience, and you can entertain the game with more sense. 4[Big Speaker and Long Battery Life]: The karaoke machine equipped with 66mm 4 ohm 10 watt speakers with 1800 mAh lithium battery, and you can listen to songs anytime and anywhere. 5[Double Suspension Lanyard]: You can adjust the lanyard and hung the speaker wherever you need, adjust the angle of the lanyard, and you can enjoy the music at different angles at any time.