Item Type: Home Karaoke Machine Material: Plastic, Electronics Speaker Bluetooth Version: Bluetooth 5.3 Speaker Speaker Diameter: 57mm 4ohm 6w 50 Diaphragm Speaker Frequency Range: 100Hz-10KHZ Speaker Reverb: Sound Effect Reverb Speaker Charging Time: 3.5-4 Hours Memory Card Slot: Speaker Memory Card Slot Supports Up To 512G Storage (Not Included) Battery Type: Speaker Built In 1200mAh, Microphone Built In 400mAh Polymer Lithium Battery (Included) Package List 1 x Speaker 1 x Microphone 1 x Charging Cable 1 x Instruction Manual 1DUAL INTERNAL MAGNETIC SPEAKERS: Dual internal magnetic speakers, 3 sound generating units, complete coverage of 200. With microphone, treble is crisp, alto is powerful and bass is thick. 2DIGITAL PROCESSING CHIP: Home karaoke machine with digital processing chip, so that the sound better. You can also enjoy the KTV sound at home. 3SUPPORT FUNCTION: Support memory card to play music, USB OTG with its own microphone, singing amplification function, reverb sound, headphone output. 4BLUETOOTH CONNECTIVITY: Mini karaoke machine set can Bluetooth connection TV, cell phone singing, so your ears immersed in the beautiful music. 5EASY TO CARRY: Handheld karaoke mics speaker machine light weight, exquisite appearance. Small size, easy to carry, can also be stored in the bag.